Home / 9,948.20-13,728.75-5,472.20

Finding the Fourth Proportional to 9,948.20, 13,728.75 and 5,472.20

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Solution

The fourth proportional to 9,948.20, 13,728.75 and 5,472.20 is: 7,551.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,948.20 : 13,728.75 = 5,472.20 : x
  2. Step 2: Convert to fraction form
    9,948.20/13,728.75 = 5,472.20/x
  3. Step 3: Cross multiply
    9,948.20x = 13,728.75 × 5,472.20
  4. Step 4: Simplify right side
    9,948.20x = 75,126,465.75
  5. Step 5: Solve for x
    x = 75,126,465.75/9,948.20
  6. Step 6: Final answer
    x = 7,551.76

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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.