Home / 15,580.29-21,501.26-8,507.17

Finding the Fourth Proportional to 15,580.29, 21,501.26 and 8,507.17

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Solution

The fourth proportional to 15,580.29, 21,501.26 and 8,507.17 is: 11,740.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,580.29 : 21,501.26 = 8,507.17 : x
  2. Step 2: Convert to fraction form
    15,580.29/21,501.26 = 8,507.17/x
  3. Step 3: Cross multiply
    15,580.29x = 21,501.26 × 8,507.17
  4. Step 4: Simplify right side
    15,580.29x = 182,914,874.03
  5. Step 5: Solve for x
    x = 182,914,874.03/15,580.29
  6. Step 6: Final answer
    x = 11,740.15

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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.