Home / 10,330.86-15,488.70-3,306.81

Finding the Fourth Proportional to 10,330.86, 15,488.70 and 3,306.81

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Solution

The fourth proportional to 10,330.86, 15,488.70 and 3,306.81 is: 4,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,330.86 : 15,488.70 = 3,306.81 : x
  2. Step 2: Convert to fraction form
    10,330.86/15,488.70 = 3,306.81/x
  3. Step 3: Cross multiply
    10,330.86x = 15,488.70 × 3,306.81
  4. Step 4: Simplify right side
    10,330.86x = 51,218,188.05
  5. Step 5: Solve for x
    x = 51,218,188.05/10,330.86
  6. Step 6: Final answer
    x = 4,957.79

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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.