Home / 10,330.11-15,425.12-8,113.95

Finding the Fourth Proportional to 10,330.11, 15,425.12 and 8,113.95

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Solution

The fourth proportional to 10,330.11, 15,425.12 and 8,113.95 is: 12,115.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,330.11 : 15,425.12 = 8,113.95 : x
  2. Step 2: Convert to fraction form
    10,330.11/15,425.12 = 8,113.95/x
  3. Step 3: Cross multiply
    10,330.11x = 15,425.12 × 8,113.95
  4. Step 4: Simplify right side
    10,330.11x = 125,158,672.71
  5. Step 5: Solve for x
    x = 125,158,672.71/10,330.11
  6. Step 6: Final answer
    x = 12,115.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.