Home / 7,650.38-11,475.57-2,103.80

Finding the Fourth Proportional to 7,650.38, 11,475.57 and 2,103.80

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Solution

The fourth proportional to 7,650.38, 11,475.57 and 2,103.80 is: 3,155.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,650.38 : 11,475.57 = 2,103.80 : x
  2. Step 2: Convert to fraction form
    7,650.38/11,475.57 = 2,103.80/x
  3. Step 3: Cross multiply
    7,650.38x = 11,475.57 × 2,103.80
  4. Step 4: Simplify right side
    7,650.38x = 24,142,304.17
  5. Step 5: Solve for x
    x = 24,142,304.17/7,650.38
  6. Step 6: Final answer
    x = 3,155.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.