Home / 8,925.12-13,388.88-3,729.78

Finding the Fourth Proportional to 8,925.12, 13,388.88 and 3,729.78

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Solution

The fourth proportional to 8,925.12, 13,388.88 and 3,729.78 is: 5,595.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,925.12 : 13,388.88 = 3,729.78 : x
  2. Step 2: Convert to fraction form
    8,925.12/13,388.88 = 3,729.78/x
  3. Step 3: Cross multiply
    8,925.12x = 13,388.88 × 3,729.78
  4. Step 4: Simplify right side
    8,925.12x = 49,937,576.85
  5. Step 5: Solve for x
    x = 49,937,576.85/8,925.12
  6. Step 6: Final answer
    x = 5,595.17

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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.