Home / 10,330.61-15,425.87-8,114.45

Finding the Fourth Proportional to 10,330.61, 15,425.87 and 8,114.45

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Solution

The fourth proportional to 10,330.61, 15,425.87 and 8,114.45 is: 12,116.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,330.61 : 15,425.87 = 8,114.45 : x
  2. Step 2: Convert to fraction form
    10,330.61/15,425.87 = 8,114.45/x
  3. Step 3: Cross multiply
    10,330.61x = 15,425.87 × 8,114.45
  4. Step 4: Simplify right side
    10,330.61x = 125,172,450.82
  5. Step 5: Solve for x
    x = 125,172,450.82/10,330.61
  6. Step 6: Final answer
    x = 12,116.66

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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.