Home / 7,515.12-10,372.50-4,371.72

Finding the Fourth Proportional to 7,515.12, 10,372.50 and 4,371.72

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Solution

The fourth proportional to 7,515.12, 10,372.50 and 4,371.72 is: 6,033.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.12 : 10,372.50 = 4,371.72 : x
  2. Step 2: Convert to fraction form
    7,515.12/10,372.50 = 4,371.72/x
  3. Step 3: Cross multiply
    7,515.12x = 10,372.50 × 4,371.72
  4. Step 4: Simplify right side
    7,515.12x = 45,345,665.70
  5. Step 5: Solve for x
    x = 45,345,665.70/7,515.12
  6. Step 6: Final answer
    x = 6,033.92

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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.