Home / 8,788.52-13,178.68-5,091.81

Finding the Fourth Proportional to 8,788.52, 13,178.68 and 5,091.81

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Solution

The fourth proportional to 8,788.52, 13,178.68 and 5,091.81 is: 7,635.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.52 : 13,178.68 = 5,091.81 : x
  2. Step 2: Convert to fraction form
    8,788.52/13,178.68 = 5,091.81/x
  3. Step 3: Cross multiply
    8,788.52x = 13,178.68 × 5,091.81
  4. Step 4: Simplify right side
    8,788.52x = 67,103,272.46
  5. Step 5: Solve for x
    x = 67,103,272.46/8,788.52
  6. Step 6: Final answer
    x = 7,635.34

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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.