Home / 9,288.10-13,932.15-5,140.90

Finding the Fourth Proportional to 9,288.10, 13,932.15 and 5,140.90

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Solution

The fourth proportional to 9,288.10, 13,932.15 and 5,140.90 is: 7,711.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,288.10 : 13,932.15 = 5,140.90 : x
  2. Step 2: Convert to fraction form
    9,288.10/13,932.15 = 5,140.90/x
  3. Step 3: Cross multiply
    9,288.10x = 13,932.15 × 5,140.90
  4. Step 4: Simplify right side
    9,288.10x = 71,623,789.94
  5. Step 5: Solve for x
    x = 71,623,789.94/9,288.10
  6. Step 6: Final answer
    x = 7,711.35

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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.