Home / 7,917.03-11,928.40-7,167.53

Finding the Fourth Proportional to 7,917.03, 11,928.40 and 7,167.53

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Solution

The fourth proportional to 7,917.03, 11,928.40 and 7,167.53 is: 10,799.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.03 : 11,928.40 = 7,167.53 : x
  2. Step 2: Convert to fraction form
    7,917.03/11,928.40 = 7,167.53/x
  3. Step 3: Cross multiply
    7,917.03x = 11,928.40 × 7,167.53
  4. Step 4: Simplify right side
    7,917.03x = 85,497,164.85
  5. Step 5: Solve for x
    x = 85,497,164.85/7,917.03
  6. Step 6: Final answer
    x = 10,799.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.