Home / 15,980.49-22,052.25-8,906.76

Finding the Fourth Proportional to 15,980.49, 22,052.25 and 8,906.76

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Solution

The fourth proportional to 15,980.49, 22,052.25 and 8,906.76 is: 12,290.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,980.49 : 22,052.25 = 8,906.76 : x
  2. Step 2: Convert to fraction form
    15,980.49/22,052.25 = 8,906.76/x
  3. Step 3: Cross multiply
    15,980.49x = 22,052.25 × 8,906.76
  4. Step 4: Simplify right side
    15,980.49x = 196,414,098.21
  5. Step 5: Solve for x
    x = 196,414,098.21/15,980.49
  6. Step 6: Final answer
    x = 12,290.87

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Half scale
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Double scale
Find fourth proportional to 15,981.49, 22,053.63 and 8,907.76
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.