Home / 10,474.30-15,716.57-4,928.20

Finding the Fourth Proportional to 10,474.30, 15,716.57 and 4,928.20

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Solution

The fourth proportional to 10,474.30, 15,716.57 and 4,928.20 is: 7,394.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,474.30 : 15,716.57 = 4,928.20 : x
  2. Step 2: Convert to fraction form
    10,474.30/15,716.57 = 4,928.20/x
  3. Step 3: Cross multiply
    10,474.30x = 15,716.57 × 4,928.20
  4. Step 4: Simplify right side
    10,474.30x = 77,454,321.69
  5. Step 5: Solve for x
    x = 77,454,321.69/10,474.30
  6. Step 6: Final answer
    x = 7,394.70

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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.