Home / 8,140.64-11,234.30-4,555.47

Finding the Fourth Proportional to 8,140.64, 11,234.30 and 4,555.47

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Solution

The fourth proportional to 8,140.64, 11,234.30 and 4,555.47 is: 6,286.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.64 : 11,234.30 = 4,555.47 : x
  2. Step 2: Convert to fraction form
    8,140.64/11,234.30 = 4,555.47/x
  3. Step 3: Cross multiply
    8,140.64x = 11,234.30 × 4,555.47
  4. Step 4: Simplify right side
    8,140.64x = 51,177,535.97
  5. Step 5: Solve for x
    x = 51,177,535.97/8,140.64
  6. Step 6: Final answer
    x = 6,286.68

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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.