Home / 7,515.28-10,371.03-4,491.78

Finding the Fourth Proportional to 7,515.28, 10,371.03 and 4,491.78

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Solution

The fourth proportional to 7,515.28, 10,371.03 and 4,491.78 is: 6,198.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.28 : 10,371.03 = 4,491.78 : x
  2. Step 2: Convert to fraction form
    7,515.28/10,371.03 = 4,491.78/x
  3. Step 3: Cross multiply
    7,515.28x = 10,371.03 × 4,491.78
  4. Step 4: Simplify right side
    7,515.28x = 46,584,385.13
  5. Step 5: Solve for x
    x = 46,584,385.13/7,515.28
  6. Step 6: Final answer
    x = 6,198.62

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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.