Home / 15,564.39-21,478.12-9,596.62

Finding the Fourth Proportional to 15,564.39, 21,478.12 and 9,596.62

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Solution

The fourth proportional to 15,564.39, 21,478.12 and 9,596.62 is: 13,242.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,564.39 : 21,478.12 = 9,596.62 : x
  2. Step 2: Convert to fraction form
    15,564.39/21,478.12 = 9,596.62/x
  3. Step 3: Cross multiply
    15,564.39x = 21,478.12 × 9,596.62
  4. Step 4: Simplify right side
    15,564.39x = 206,117,355.95
  5. Step 5: Solve for x
    x = 206,117,355.95/15,564.39
  6. Step 6: Final answer
    x = 13,242.88

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Half scale
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Double scale
Find fourth proportional to 15,565.39, 21,479.50 and 9,597.62
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.