Home / 8,207.12-12,309.52-4,685.70

Finding the Fourth Proportional to 8,207.12, 12,309.52 and 4,685.70

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Solution

The fourth proportional to 8,207.12, 12,309.52 and 4,685.70 is: 7,027.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.12 : 12,309.52 = 4,685.70 : x
  2. Step 2: Convert to fraction form
    8,207.12/12,309.52 = 4,685.70/x
  3. Step 3: Cross multiply
    8,207.12x = 12,309.52 × 4,685.70
  4. Step 4: Simplify right side
    8,207.12x = 57,678,691.86
  5. Step 5: Solve for x
    x = 57,678,691.86/8,207.12
  6. Step 6: Final answer
    x = 7,027.88

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1.5x scale

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.