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Finding the Fourth Proportional to 18,087.80, 24,961.14 and 10,130.08

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Solution

The fourth proportional to 18,087.80, 24,961.14 and 10,130.08 is: 13,979.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.80 : 24,961.14 = 10,130.08 : x
  2. Step 2: Convert to fraction form
    18,087.80/24,961.14 = 10,130.08/x
  3. Step 3: Cross multiply
    18,087.80x = 24,961.14 × 10,130.08
  4. Step 4: Simplify right side
    18,087.80x = 252,858,345.09
  5. Step 5: Solve for x
    x = 252,858,345.09/18,087.80
  6. Step 6: Final answer
    x = 13,979.50

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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.