Home / 8,905.14-12,291.75-5,761.53

Finding the Fourth Proportional to 8,905.14, 12,291.75 and 5,761.53

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Solution

The fourth proportional to 8,905.14, 12,291.75 and 5,761.53 is: 7,952.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.14 : 12,291.75 = 5,761.53 : x
  2. Step 2: Convert to fraction form
    8,905.14/12,291.75 = 5,761.53/x
  3. Step 3: Cross multiply
    8,905.14x = 12,291.75 × 5,761.53
  4. Step 4: Simplify right side
    8,905.14x = 70,819,286.38
  5. Step 5: Solve for x
    x = 70,819,286.38/8,905.14
  6. Step 6: Final answer
    x = 7,952.63

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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.