Home / 6,631.38-9,143.01-5,577.30

Finding the Fourth Proportional to 6,631.38, 9,143.01 and 5,577.30

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Solution

The fourth proportional to 6,631.38, 9,143.01 and 5,577.30 is: 7,689.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.38 : 9,143.01 = 5,577.30 : x
  2. Step 2: Convert to fraction form
    6,631.38/9,143.01 = 5,577.30/x
  3. Step 3: Cross multiply
    6,631.38x = 9,143.01 × 5,577.30
  4. Step 4: Simplify right side
    6,631.38x = 50,993,309.67
  5. Step 5: Solve for x
    x = 50,993,309.67/6,631.38
  6. Step 6: Final answer
    x = 7,689.70

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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.