Home / 18,500.80-25,530.56-10,116.76

Finding the Fourth Proportional to 18,500.80, 25,530.56 and 10,116.76

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Solution

The fourth proportional to 18,500.80, 25,530.56 and 10,116.76 is: 13,960.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,500.80 : 25,530.56 = 10,116.76 : x
  2. Step 2: Convert to fraction form
    18,500.80/25,530.56 = 10,116.76/x
  3. Step 3: Cross multiply
    18,500.80x = 25,530.56 × 10,116.76
  4. Step 4: Simplify right side
    18,500.80x = 258,286,548.19
  5. Step 5: Solve for x
    x = 258,286,548.19/18,500.80
  6. Step 6: Final answer
    x = 13,960.83

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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.