Home / 10,318.62-15,479.94-4,081.56

Finding the Fourth Proportional to 10,318.62, 15,479.94 and 4,081.56

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Solution

The fourth proportional to 10,318.62, 15,479.94 and 4,081.56 is: 6,123.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.62 : 15,479.94 = 4,081.56 : x
  2. Step 2: Convert to fraction form
    10,318.62/15,479.94 = 4,081.56/x
  3. Step 3: Cross multiply
    10,318.62x = 15,479.94 × 4,081.56
  4. Step 4: Simplify right side
    10,318.62x = 63,182,303.91
  5. Step 5: Solve for x
    x = 63,182,303.91/10,318.62
  6. Step 6: Final answer
    x = 6,123.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.