Home / 15,600.38-21,528.54-8,526.78

Finding the Fourth Proportional to 15,600.38, 21,528.54 and 8,526.78

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Solution

The fourth proportional to 15,600.38, 21,528.54 and 8,526.78 is: 11,766.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600.38 : 21,528.54 = 8,526.78 : x
  2. Step 2: Convert to fraction form
    15,600.38/21,528.54 = 8,526.78/x
  3. Step 3: Cross multiply
    15,600.38x = 21,528.54 × 8,526.78
  4. Step 4: Simplify right side
    15,600.38x = 183,569,124.30
  5. Step 5: Solve for x
    x = 183,569,124.30/15,600.38
  6. Step 6: Final answer
    x = 11,766.97

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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.