Home / 15,610.30-21,542.19-8,536.72

Finding the Fourth Proportional to 15,610.30, 21,542.19 and 8,536.72

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Solution

The fourth proportional to 15,610.30, 21,542.19 and 8,536.72 is: 11,780.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,610.30 : 21,542.19 = 8,536.72 : x
  2. Step 2: Convert to fraction form
    15,610.30/21,542.19 = 8,536.72/x
  3. Step 3: Cross multiply
    15,610.30x = 21,542.19 × 8,536.72
  4. Step 4: Simplify right side
    15,610.30x = 183,899,644.22
  5. Step 5: Solve for x
    x = 183,899,644.22/15,610.30
  6. Step 6: Final answer
    x = 11,780.66

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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.