Home / 6,938.87-9,576.77-5,158.17

Finding the Fourth Proportional to 6,938.87, 9,576.77 and 5,158.17

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Solution

The fourth proportional to 6,938.87, 9,576.77 and 5,158.17 is: 7,119.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.87 : 9,576.77 = 5,158.17 : x
  2. Step 2: Convert to fraction form
    6,938.87/9,576.77 = 5,158.17/x
  3. Step 3: Cross multiply
    6,938.87x = 9,576.77 × 5,158.17
  4. Step 4: Simplify right side
    6,938.87x = 49,398,581.92
  5. Step 5: Solve for x
    x = 49,398,581.92/6,938.87
  6. Step 6: Final answer
    x = 7,119.12

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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.