Home / 9,187.92-13,789.90-5,247.08

Finding the Fourth Proportional to 9,187.92, 13,789.90 and 5,247.08

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Solution

The fourth proportional to 9,187.92, 13,789.90 and 5,247.08 is: 7,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187.92 : 13,789.90 = 5,247.08 : x
  2. Step 2: Convert to fraction form
    9,187.92/13,789.90 = 5,247.08/x
  3. Step 3: Cross multiply
    9,187.92x = 13,789.90 × 5,247.08
  4. Step 4: Simplify right side
    9,187.92x = 72,356,708.49
  5. Step 5: Solve for x
    x = 72,356,708.49/9,187.92
  6. Step 6: Final answer
    x = 7,875.20

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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.