Home / 15,614.50-21,547.47-8,902.29

Finding the Fourth Proportional to 15,614.50, 21,547.47 and 8,902.29

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Solution

The fourth proportional to 15,614.50, 21,547.47 and 8,902.29 is: 12,284.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,614.50 : 21,547.47 = 8,902.29 : x
  2. Step 2: Convert to fraction form
    15,614.50/21,547.47 = 8,902.29/x
  3. Step 3: Cross multiply
    15,614.50x = 21,547.47 × 8,902.29
  4. Step 4: Simplify right side
    15,614.50x = 191,821,769.61
  5. Step 5: Solve for x
    x = 191,821,769.61/15,614.50
  6. Step 6: Final answer
    x = 12,284.85

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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.