Home / 8,833.20-12,187.20-7,338.75

Finding the Fourth Proportional to 8,833.20, 12,187.20 and 7,338.75

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Solution

The fourth proportional to 8,833.20, 12,187.20 and 7,338.75 is: 10,125.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,833.20 : 12,187.20 = 7,338.75 : x
  2. Step 2: Convert to fraction form
    8,833.20/12,187.20 = 7,338.75/x
  3. Step 3: Cross multiply
    8,833.20x = 12,187.20 × 7,338.75
  4. Step 4: Simplify right side
    8,833.20x = 89,438,814
  5. Step 5: Solve for x
    x = 89,438,814/8,833.20
  6. Step 6: Final answer
    x = 10,125.30

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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.