Home / 13,610.46-18,781.02-8,306.58

Finding the Fourth Proportional to 13,610.46, 18,781.02 and 8,306.58

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Solution

The fourth proportional to 13,610.46, 18,781.02 and 8,306.58 is: 11,462.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.46 : 18,781.02 = 8,306.58 : x
  2. Step 2: Convert to fraction form
    13,610.46/18,781.02 = 8,306.58/x
  3. Step 3: Cross multiply
    13,610.46x = 18,781.02 × 8,306.58
  4. Step 4: Simplify right side
    13,610.46x = 156,006,045.11
  5. Step 5: Solve for x
    x = 156,006,045.11/13,610.46
  6. Step 6: Final answer
    x = 11,462.22

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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.