Home / 13,646.62-18,830.10-9,177.88

Finding the Fourth Proportional to 13,646.62, 18,830.10 and 9,177.88

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Solution

The fourth proportional to 13,646.62, 18,830.10 and 9,177.88 is: 12,663.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.62 : 18,830.10 = 9,177.88 : x
  2. Step 2: Convert to fraction form
    13,646.62/18,830.10 = 9,177.88/x
  3. Step 3: Cross multiply
    13,646.62x = 18,830.10 × 9,177.88
  4. Step 4: Simplify right side
    13,646.62x = 172,820,398.19
  5. Step 5: Solve for x
    x = 172,820,398.19/13,646.62
  6. Step 6: Final answer
    x = 12,663.97

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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.