Home / 12,929.43-17,849.40-8,702.73

Finding the Fourth Proportional to 12,929.43, 17,849.40 and 8,702.73

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Solution

The fourth proportional to 12,929.43, 17,849.40 and 8,702.73 is: 12,014.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.43 : 17,849.40 = 8,702.73 : x
  2. Step 2: Convert to fraction form
    12,929.43/17,849.40 = 8,702.73/x
  3. Step 3: Cross multiply
    12,929.43x = 17,849.40 × 8,702.73
  4. Step 4: Simplify right side
    12,929.43x = 155,338,508.86
  5. Step 5: Solve for x
    x = 155,338,508.86/12,929.43
  6. Step 6: Final answer
    x = 12,014.34

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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.