Home / 8,729.40-12,046.82-4,750.76

Finding the Fourth Proportional to 8,729.40, 12,046.82 and 4,750.76

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Solution

The fourth proportional to 8,729.40, 12,046.82 and 4,750.76 is: 6,556.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.40 : 12,046.82 = 4,750.76 : x
  2. Step 2: Convert to fraction form
    8,729.40/12,046.82 = 4,750.76/x
  3. Step 3: Cross multiply
    8,729.40x = 12,046.82 × 4,750.76
  4. Step 4: Simplify right side
    8,729.40x = 57,231,536.43
  5. Step 5: Solve for x
    x = 57,231,536.43/8,729.40
  6. Step 6: Final answer
    x = 6,556.19

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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.