Home / 18,315.68-25,281.60-10,761.88

Finding the Fourth Proportional to 18,315.68, 25,281.60 and 10,761.88

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Solution

The fourth proportional to 18,315.68, 25,281.60 and 10,761.88 is: 14,854.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.68 : 25,281.60 = 10,761.88 : x
  2. Step 2: Convert to fraction form
    18,315.68/25,281.60 = 10,761.88/x
  3. Step 3: Cross multiply
    18,315.68x = 25,281.60 × 10,761.88
  4. Step 4: Simplify right side
    18,315.68x = 272,077,545.41
  5. Step 5: Solve for x
    x = 272,077,545.41/18,315.68
  6. Step 6: Final answer
    x = 14,854.90

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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.