Home / 18,167.28-25,072.56-10,209.12

Finding the Fourth Proportional to 18,167.28, 25,072.56 and 10,209.12

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Solution

The fourth proportional to 18,167.28, 25,072.56 and 10,209.12 is: 14,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,167.28 : 25,072.56 = 10,209.12 : x
  2. Step 2: Convert to fraction form
    18,167.28/25,072.56 = 10,209.12/x
  3. Step 3: Cross multiply
    18,167.28x = 25,072.56 × 10,209.12
  4. Step 4: Simplify right side
    18,167.28x = 255,968,773.75
  5. Step 5: Solve for x
    x = 255,968,773.75/18,167.28
  6. Step 6: Final answer
    x = 14,089.55

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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.