Home / 8,773.12-13,160.40-2,929.72

Finding the Fourth Proportional to 8,773.12, 13,160.40 and 2,929.72

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Solution

The fourth proportional to 8,773.12, 13,160.40 and 2,929.72 is: 4,394.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,773.12 : 13,160.40 = 2,929.72 : x
  2. Step 2: Convert to fraction form
    8,773.12/13,160.40 = 2,929.72/x
  3. Step 3: Cross multiply
    8,773.12x = 13,160.40 × 2,929.72
  4. Step 4: Simplify right side
    8,773.12x = 38,556,287.09
  5. Step 5: Solve for x
    x = 38,556,287.09/8,773.12
  6. Step 6: Final answer
    x = 4,394.82

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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.