Home / 7,515.38-10,370.39-4,157.66

Finding the Fourth Proportional to 7,515.38, 10,370.39 and 4,157.66

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Solution

The fourth proportional to 7,515.38, 10,370.39 and 4,157.66 is: 5,737.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.38 : 10,370.39 = 4,157.66 : x
  2. Step 2: Convert to fraction form
    7,515.38/10,370.39 = 4,157.66/x
  3. Step 3: Cross multiply
    7,515.38x = 10,370.39 × 4,157.66
  4. Step 4: Simplify right side
    7,515.38x = 43,116,560.83
  5. Step 5: Solve for x
    x = 43,116,560.83/7,515.38
  6. Step 6: Final answer
    x = 5,737.11

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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.