Home / 15,610.13-21,542.49-8,536.55

Finding the Fourth Proportional to 15,610.13, 21,542.49 and 8,536.55

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Solution

The fourth proportional to 15,610.13, 21,542.49 and 8,536.55 is: 11,780.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,610.13 : 21,542.49 = 8,536.55 : x
  2. Step 2: Convert to fraction form
    15,610.13/21,542.49 = 8,536.55/x
  3. Step 3: Cross multiply
    15,610.13x = 21,542.49 × 8,536.55
  4. Step 4: Simplify right side
    15,610.13x = 183,898,543.01
  5. Step 5: Solve for x
    x = 183,898,543.01/15,610.13
  6. Step 6: Final answer
    x = 11,780.72

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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.