Home / 10,207.15-14,086.20-5,731.70

Finding the Fourth Proportional to 10,207.15, 14,086.20 and 5,731.70

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Solution

The fourth proportional to 10,207.15, 14,086.20 and 5,731.70 is: 7,909.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207.15 : 14,086.20 = 5,731.70 : x
  2. Step 2: Convert to fraction form
    10,207.15/14,086.20 = 5,731.70/x
  3. Step 3: Cross multiply
    10,207.15x = 14,086.20 × 5,731.70
  4. Step 4: Simplify right side
    10,207.15x = 80,737,823.60
  5. Step 5: Solve for x
    x = 80,737,823.60/10,207.15
  6. Step 6: Final answer
    x = 7,909.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.