Home / 7,391.14-11,043.40-7,132.75

Finding the Fourth Proportional to 7,391.14, 11,043.40 and 7,132.75

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Solution

The fourth proportional to 7,391.14, 11,043.40 and 7,132.75 is: 10,657.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,391.14 : 11,043.40 = 7,132.75 : x
  2. Step 2: Convert to fraction form
    7,391.14/11,043.40 = 7,132.75/x
  3. Step 3: Cross multiply
    7,391.14x = 11,043.40 × 7,132.75
  4. Step 4: Simplify right side
    7,391.14x = 78,769,811.35
  5. Step 5: Solve for x
    x = 78,769,811.35/7,391.14
  6. Step 6: Final answer
    x = 10,657.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.