Home / 7,515.87-10,371.95-4,158.74

Finding the Fourth Proportional to 7,515.87, 10,371.95 and 4,158.74

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Solution

The fourth proportional to 7,515.87, 10,371.95 and 4,158.74 is: 5,739.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.87 : 10,371.95 = 4,158.74 : x
  2. Step 2: Convert to fraction form
    7,515.87/10,371.95 = 4,158.74/x
  3. Step 3: Cross multiply
    7,515.87x = 10,371.95 × 4,158.74
  4. Step 4: Simplify right side
    7,515.87x = 43,134,170.69
  5. Step 5: Solve for x
    x = 43,134,170.69/7,515.87
  6. Step 6: Final answer
    x = 5,739.08

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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.