Home / 18,116.97-25,002.53-13,632.76

Finding the Fourth Proportional to 18,116.97, 25,002.53 and 13,632.76

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Solution

The fourth proportional to 18,116.97, 25,002.53 and 13,632.76 is: 18,814.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,116.97 : 25,002.53 = 13,632.76 : x
  2. Step 2: Convert to fraction form
    18,116.97/25,002.53 = 13,632.76/x
  3. Step 3: Cross multiply
    18,116.97x = 25,002.53 × 13,632.76
  4. Step 4: Simplify right side
    18,116.97x = 340,853,490.88
  5. Step 5: Solve for x
    x = 340,853,490.88/18,116.97
  6. Step 6: Final answer
    x = 18,814.05

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Half scale
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Double scale
Find fourth proportional to 18,117.97, 25,003.91 and 13,633.76
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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.