Home / 7,115.92-9,820.35-4,132.69

Finding the Fourth Proportional to 7,115.92, 9,820.35 and 4,132.69

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Solution

The fourth proportional to 7,115.92, 9,820.35 and 4,132.69 is: 5,703.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.92 : 9,820.35 = 4,132.69 : x
  2. Step 2: Convert to fraction form
    7,115.92/9,820.35 = 4,132.69/x
  3. Step 3: Cross multiply
    7,115.92x = 9,820.35 × 4,132.69
  4. Step 4: Simplify right side
    7,115.92x = 40,584,462.24
  5. Step 5: Solve for x
    x = 40,584,462.24/7,115.92
  6. Step 6: Final answer
    x = 5,703.33

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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.