Home / 8,789.18-13,175.28-3,239.48

Finding the Fourth Proportional to 8,789.18, 13,175.28 and 3,239.48

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Solution

The fourth proportional to 8,789.18, 13,175.28 and 3,239.48 is: 4,856.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,789.18 : 13,175.28 = 3,239.48 : x
  2. Step 2: Convert to fraction form
    8,789.18/13,175.28 = 3,239.48/x
  3. Step 3: Cross multiply
    8,789.18x = 13,175.28 × 3,239.48
  4. Step 4: Simplify right side
    8,789.18x = 42,681,088.99
  5. Step 5: Solve for x
    x = 42,681,088.99/8,789.18
  6. Step 6: Final answer
    x = 4,856.10

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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.