Home / 18,116.72-25,000.66-10,158.76

Finding the Fourth Proportional to 18,116.72, 25,000.66 and 10,158.76

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Solution

The fourth proportional to 18,116.72, 25,000.66 and 10,158.76 is: 14,018.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,116.72 : 25,000.66 = 10,158.76 : x
  2. Step 2: Convert to fraction form
    18,116.72/25,000.66 = 10,158.76/x
  3. Step 3: Cross multiply
    18,116.72x = 25,000.66 × 10,158.76
  4. Step 4: Simplify right side
    18,116.72x = 253,975,704.78
  5. Step 5: Solve for x
    x = 253,975,704.78/18,116.72
  6. Step 6: Final answer
    x = 14,018.86

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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.