Home / 7,177.48-10,764.42-5,091.40

Finding the Fourth Proportional to 7,177.48, 10,764.42 and 5,091.40

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Solution

The fourth proportional to 7,177.48, 10,764.42 and 5,091.40 is: 7,635.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.48 : 10,764.42 = 5,091.40 : x
  2. Step 2: Convert to fraction form
    7,177.48/10,764.42 = 5,091.40/x
  3. Step 3: Cross multiply
    7,177.48x = 10,764.42 × 5,091.40
  4. Step 4: Simplify right side
    7,177.48x = 54,805,967.99
  5. Step 5: Solve for x
    x = 54,805,967.99/7,177.48
  6. Step 6: Final answer
    x = 7,635.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.