Home / 7,753.11-11,629.68-1,909.72

Finding the Fourth Proportional to 7,753.11, 11,629.68 and 1,909.72

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Solution

The fourth proportional to 7,753.11, 11,629.68 and 1,909.72 is: 2,864.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,753.11 : 11,629.68 = 1,909.72 : x
  2. Step 2: Convert to fraction form
    7,753.11/11,629.68 = 1,909.72/x
  3. Step 3: Cross multiply
    7,753.11x = 11,629.68 × 1,909.72
  4. Step 4: Simplify right side
    7,753.11x = 22,209,432.49
  5. Step 5: Solve for x
    x = 22,209,432.49/7,753.11
  6. Step 6: Final answer
    x = 2,864.58

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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.