Home / 13,456.12-18,565.02-8,148.92

Finding the Fourth Proportional to 13,456.12, 18,565.02 and 8,148.92

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Solution

The fourth proportional to 13,456.12, 18,565.02 and 8,148.92 is: 11,242.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.12 : 18,565.02 = 8,148.92 : x
  2. Step 2: Convert to fraction form
    13,456.12/18,565.02 = 8,148.92/x
  3. Step 3: Cross multiply
    13,456.12x = 18,565.02 × 8,148.92
  4. Step 4: Simplify right side
    13,456.12x = 151,284,862.78
  5. Step 5: Solve for x
    x = 151,284,862.78/13,456.12
  6. Step 6: Final answer
    x = 11,242.83

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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.