Home / 8,872.31-12,243.26-5,291.30

Finding the Fourth Proportional to 8,872.31, 12,243.26 and 5,291.30

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Solution

The fourth proportional to 8,872.31, 12,243.26 and 5,291.30 is: 7,301.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.31 : 12,243.26 = 5,291.30 : x
  2. Step 2: Convert to fraction form
    8,872.31/12,243.26 = 5,291.30/x
  3. Step 3: Cross multiply
    8,872.31x = 12,243.26 × 5,291.30
  4. Step 4: Simplify right side
    8,872.31x = 64,782,805.47
  5. Step 5: Solve for x
    x = 64,782,805.47/8,872.31
  6. Step 6: Final answer
    x = 7,301.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.