Home / 10,931.64-16,397.46-4,687.62

Finding the Fourth Proportional to 10,931.64, 16,397.46 and 4,687.62

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Solution

The fourth proportional to 10,931.64, 16,397.46 and 4,687.62 is: 7,031.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.64 : 16,397.46 = 4,687.62 : x
  2. Step 2: Convert to fraction form
    10,931.64/16,397.46 = 4,687.62/x
  3. Step 3: Cross multiply
    10,931.64x = 16,397.46 × 4,687.62
  4. Step 4: Simplify right side
    10,931.64x = 76,865,061.45
  5. Step 5: Solve for x
    x = 76,865,061.45/10,931.64
  6. Step 6: Final answer
    x = 7,031.43

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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.