Home / 8,909.10-12,296.82-5,374.68

Finding the Fourth Proportional to 8,909.10, 12,296.82 and 5,374.68

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Solution

The fourth proportional to 8,909.10, 12,296.82 and 5,374.68 is: 7,418.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.10 : 12,296.82 = 5,374.68 : x
  2. Step 2: Convert to fraction form
    8,909.10/12,296.82 = 5,374.68/x
  3. Step 3: Cross multiply
    8,909.10x = 12,296.82 × 5,374.68
  4. Step 4: Simplify right side
    8,909.10x = 66,091,472.52
  5. Step 5: Solve for x
    x = 66,091,472.52/8,909.10
  6. Step 6: Final answer
    x = 7,418.42

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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.