Home / 17,654.80-24,379.45-13,170.77

Finding the Fourth Proportional to 17,654.80, 24,379.45 and 13,170.77

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Solution

The fourth proportional to 17,654.80, 24,379.45 and 13,170.77 is: 18,187.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,654.80 : 24,379.45 = 13,170.77 : x
  2. Step 2: Convert to fraction form
    17,654.80/24,379.45 = 13,170.77/x
  3. Step 3: Cross multiply
    17,654.80x = 24,379.45 × 13,170.77
  4. Step 4: Simplify right side
    17,654.80x = 321,095,940.93
  5. Step 5: Solve for x
    x = 321,095,940.93/17,654.80
  6. Step 6: Final answer
    x = 18,187.46

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Half scale
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Double scale
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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.