Home / 18,261.12-25,200.24-9,877.68

Finding the Fourth Proportional to 18,261.12, 25,200.24 and 9,877.68

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Solution

The fourth proportional to 18,261.12, 25,200.24 and 9,877.68 is: 13,631.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.12 : 25,200.24 = 9,877.68 : x
  2. Step 2: Convert to fraction form
    18,261.12/25,200.24 = 9,877.68/x
  3. Step 3: Cross multiply
    18,261.12x = 25,200.24 × 9,877.68
  4. Step 4: Simplify right side
    18,261.12x = 248,919,906.64
  5. Step 5: Solve for x
    x = 248,919,906.64/18,261.12
  6. Step 6: Final answer
    x = 13,631.14

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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.