Home / 12,788.08-19,175.61-5,856.64

Finding the Fourth Proportional to 12,788.08, 19,175.61 and 5,856.64

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Solution

The fourth proportional to 12,788.08, 19,175.61 and 5,856.64 is: 8,781.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.08 : 19,175.61 = 5,856.64 : x
  2. Step 2: Convert to fraction form
    12,788.08/19,175.61 = 5,856.64/x
  3. Step 3: Cross multiply
    12,788.08x = 19,175.61 × 5,856.64
  4. Step 4: Simplify right side
    12,788.08x = 112,304,644.55
  5. Step 5: Solve for x
    x = 112,304,644.55/12,788.08
  6. Step 6: Final answer
    x = 8,781.98

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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.