Home / 9,150.40-12,626.56-6,761.64

Finding the Fourth Proportional to 9,150.40, 12,626.56 and 6,761.64

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Solution

The fourth proportional to 9,150.40, 12,626.56 and 6,761.64 is: 9,330.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,150.40 : 12,626.56 = 6,761.64 : x
  2. Step 2: Convert to fraction form
    9,150.40/12,626.56 = 6,761.64/x
  3. Step 3: Cross multiply
    9,150.40x = 12,626.56 × 6,761.64
  4. Step 4: Simplify right side
    9,150.40x = 85,376,253.16
  5. Step 5: Solve for x
    x = 85,376,253.16/9,150.40
  6. Step 6: Final answer
    x = 9,330.33

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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.