Home / 10,161.38-15,242.75-3,921.46

Finding the Fourth Proportional to 10,161.38, 15,242.75 and 3,921.46

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Solution

The fourth proportional to 10,161.38, 15,242.75 and 3,921.46 is: 5,882.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,161.38 : 15,242.75 = 3,921.46 : x
  2. Step 2: Convert to fraction form
    10,161.38/15,242.75 = 3,921.46/x
  3. Step 3: Cross multiply
    10,161.38x = 15,242.75 × 3,921.46
  4. Step 4: Simplify right side
    10,161.38x = 59,773,834.42
  5. Step 5: Solve for x
    x = 59,773,834.42/10,161.38
  6. Step 6: Final answer
    x = 5,882.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.