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Finding the Fourth Proportional to 18,165.66, 25,069.67 and 10,099.47

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Solution

The fourth proportional to 18,165.66, 25,069.67 and 10,099.47 is: 13,937.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,165.66 : 25,069.67 = 10,099.47 : x
  2. Step 2: Convert to fraction form
    18,165.66/25,069.67 = 10,099.47/x
  3. Step 3: Cross multiply
    18,165.66x = 25,069.67 × 10,099.47
  4. Step 4: Simplify right side
    18,165.66x = 253,190,380.07
  5. Step 5: Solve for x
    x = 253,190,380.07/18,165.66
  6. Step 6: Final answer
    x = 13,937.86

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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.