Home / 18,207.64-25,125.96-10,248.78

Finding the Fourth Proportional to 18,207.64, 25,125.96 and 10,248.78

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Solution

The fourth proportional to 18,207.64, 25,125.96 and 10,248.78 is: 14,142.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,207.64 : 25,125.96 = 10,248.78 : x
  2. Step 2: Convert to fraction form
    18,207.64/25,125.96 = 10,248.78/x
  3. Step 3: Cross multiply
    18,207.64x = 25,125.96 × 10,248.78
  4. Step 4: Simplify right side
    18,207.64x = 257,510,436.33
  5. Step 5: Solve for x
    x = 257,510,436.33/18,207.64
  6. Step 6: Final answer
    x = 14,142.99

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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.