Home / 13,481.52-18,613.98-9,456.90

Finding the Fourth Proportional to 13,481.52, 18,613.98 and 9,456.90

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Solution

The fourth proportional to 13,481.52, 18,613.98 and 9,456.90 is: 13,057.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.52 : 18,613.98 = 9,456.90 : x
  2. Step 2: Convert to fraction form
    13,481.52/18,613.98 = 9,456.90/x
  3. Step 3: Cross multiply
    13,481.52x = 18,613.98 × 9,456.90
  4. Step 4: Simplify right side
    13,481.52x = 176,030,547.46
  5. Step 5: Solve for x
    x = 176,030,547.46/13,481.52
  6. Step 6: Final answer
    x = 13,057.17

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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.