Home / 12,974.61-17,909.19-9,616.35

Finding the Fourth Proportional to 12,974.61, 17,909.19 and 9,616.35

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Solution

The fourth proportional to 12,974.61, 17,909.19 and 9,616.35 is: 13,273.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,974.61 : 17,909.19 = 9,616.35 : x
  2. Step 2: Convert to fraction form
    12,974.61/17,909.19 = 9,616.35/x
  3. Step 3: Cross multiply
    12,974.61x = 17,909.19 × 9,616.35
  4. Step 4: Simplify right side
    12,974.61x = 172,221,039.26
  5. Step 5: Solve for x
    x = 172,221,039.26/12,974.61
  6. Step 6: Final answer
    x = 13,273.70

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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.