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Finding the Fourth Proportional to 18,175.68, 25,089.48 and 11,459.88

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Solution

The fourth proportional to 18,175.68, 25,089.48 and 11,459.88 is: 15,819.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,175.68 : 25,089.48 = 11,459.88 : x
  2. Step 2: Convert to fraction form
    18,175.68/25,089.48 = 11,459.88/x
  3. Step 3: Cross multiply
    18,175.68x = 25,089.48 × 11,459.88
  4. Step 4: Simplify right side
    18,175.68x = 287,522,430.06
  5. Step 5: Solve for x
    x = 287,522,430.06/18,175.68
  6. Step 6: Final answer
    x = 15,819.07

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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.