Home / 8,343.40-11,515.11-4,805.92

Finding the Fourth Proportional to 8,343.40, 11,515.11 and 4,805.92

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Solution

The fourth proportional to 8,343.40, 11,515.11 and 4,805.92 is: 6,632.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.40 : 11,515.11 = 4,805.92 : x
  2. Step 2: Convert to fraction form
    8,343.40/11,515.11 = 4,805.92/x
  3. Step 3: Cross multiply
    8,343.40x = 11,515.11 × 4,805.92
  4. Step 4: Simplify right side
    8,343.40x = 55,340,697.45
  5. Step 5: Solve for x
    x = 55,340,697.45/8,343.40
  6. Step 6: Final answer
    x = 6,632.87

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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.