Home / 11,678.59-17,495.30-9,781.96

Finding the Fourth Proportional to 11,678.59, 17,495.30 and 9,781.96

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Solution

The fourth proportional to 11,678.59, 17,495.30 and 9,781.96 is: 14,654.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.59 : 17,495.30 = 9,781.96 : x
  2. Step 2: Convert to fraction form
    11,678.59/17,495.30 = 9,781.96/x
  3. Step 3: Cross multiply
    11,678.59x = 17,495.30 × 9,781.96
  4. Step 4: Simplify right side
    11,678.59x = 171,138,324.79
  5. Step 5: Solve for x
    x = 171,138,324.79/11,678.59
  6. Step 6: Final answer
    x = 14,654.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.