Home / 8,337.60-12,507.68-3,143.36

Finding the Fourth Proportional to 8,337.60, 12,507.68 and 3,143.36

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Solution

The fourth proportional to 8,337.60, 12,507.68 and 3,143.36 is: 4,715.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,337.60 : 12,507.68 = 3,143.36 : x
  2. Step 2: Convert to fraction form
    8,337.60/12,507.68 = 3,143.36/x
  3. Step 3: Cross multiply
    8,337.60x = 12,507.68 × 3,143.36
  4. Step 4: Simplify right side
    8,337.60x = 39,316,141.00
  5. Step 5: Solve for x
    x = 39,316,141.00/8,337.60
  6. Step 6: Final answer
    x = 4,715.52

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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.