Home / 12,833.28-17,702.28-8,854.20

Finding the Fourth Proportional to 12,833.28, 17,702.28 and 8,854.20

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Solution

The fourth proportional to 12,833.28, 17,702.28 and 8,854.20 is: 12,213.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,833.28 : 17,702.28 = 8,854.20 : x
  2. Step 2: Convert to fraction form
    12,833.28/17,702.28 = 8,854.20/x
  3. Step 3: Cross multiply
    12,833.28x = 17,702.28 × 8,854.20
  4. Step 4: Simplify right side
    12,833.28x = 156,739,527.58
  5. Step 5: Solve for x
    x = 156,739,527.58/12,833.28
  6. Step 6: Final answer
    x = 12,213.52

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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.