Home / 15,433.28-21,294.24-9,144.56

Finding the Fourth Proportional to 15,433.28, 21,294.24 and 9,144.56

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Solution

The fourth proportional to 15,433.28, 21,294.24 and 9,144.56 is: 12,617.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,433.28 : 21,294.24 = 9,144.56 : x
  2. Step 2: Convert to fraction form
    15,433.28/21,294.24 = 9,144.56/x
  3. Step 3: Cross multiply
    15,433.28x = 21,294.24 × 9,144.56
  4. Step 4: Simplify right side
    15,433.28x = 194,726,455.33
  5. Step 5: Solve for x
    x = 194,726,455.33/15,433.28
  6. Step 6: Final answer
    x = 12,617.31

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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.