Home / 10,228.86-15,318.65-6,931.96

Finding the Fourth Proportional to 10,228.86, 15,318.65 and 6,931.96

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Solution

The fourth proportional to 10,228.86, 15,318.65 and 6,931.96 is: 10,381.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,228.86 : 15,318.65 = 6,931.96 : x
  2. Step 2: Convert to fraction form
    10,228.86/15,318.65 = 6,931.96/x
  3. Step 3: Cross multiply
    10,228.86x = 15,318.65 × 6,931.96
  4. Step 4: Simplify right side
    10,228.86x = 106,188,248.09
  5. Step 5: Solve for x
    x = 106,188,248.09/10,228.86
  6. Step 6: Final answer
    x = 10,381.24

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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.