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Finding the Fourth Proportional to 15,069.75, 20,797.19 and 8,696.23

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Solution

The fourth proportional to 15,069.75, 20,797.19 and 8,696.23 is: 12,001.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,069.75 : 20,797.19 = 8,696.23 : x
  2. Step 2: Convert to fraction form
    15,069.75/20,797.19 = 8,696.23/x
  3. Step 3: Cross multiply
    15,069.75x = 20,797.19 × 8,696.23
  4. Step 4: Simplify right side
    15,069.75x = 180,857,084.73
  5. Step 5: Solve for x
    x = 180,857,084.73/15,069.75
  6. Step 6: Final answer
    x = 12,001.34

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Half scale
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Double scale
Find fourth proportional to 15,070.75, 20,798.57 and 8,697.23
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.