Home / 8,921.16-13,387.44-6,287.04

Finding the Fourth Proportional to 8,921.16, 13,387.44 and 6,287.04

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Solution

The fourth proportional to 8,921.16, 13,387.44 and 6,287.04 is: 9,434.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.16 : 13,387.44 = 6,287.04 : x
  2. Step 2: Convert to fraction form
    8,921.16/13,387.44 = 6,287.04/x
  3. Step 3: Cross multiply
    8,921.16x = 13,387.44 × 6,287.04
  4. Step 4: Simplify right side
    8,921.16x = 84,167,370.78
  5. Step 5: Solve for x
    x = 84,167,370.78/8,921.16
  6. Step 6: Final answer
    x = 9,434.58

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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.