Home / 15,487.61-21,397.97-10,792.85

Finding the Fourth Proportional to 15,487.61, 21,397.97 and 10,792.85

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Solution

The fourth proportional to 15,487.61, 21,397.97 and 10,792.85 is: 14,911.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,487.61 : 21,397.97 = 10,792.85 : x
  2. Step 2: Convert to fraction form
    15,487.61/21,397.97 = 10,792.85/x
  3. Step 3: Cross multiply
    15,487.61x = 21,397.97 × 10,792.85
  4. Step 4: Simplify right side
    15,487.61x = 230,945,000.51
  5. Step 5: Solve for x
    x = 230,945,000.51/15,487.61
  6. Step 6: Final answer
    x = 14,911.60

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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.