Home / 7,979.48-11,002.26-5,462.80

Finding the Fourth Proportional to 7,979.48, 11,002.26 and 5,462.80

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Solution

The fourth proportional to 7,979.48, 11,002.26 and 5,462.80 is: 7,532.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.48 : 11,002.26 = 5,462.80 : x
  2. Step 2: Convert to fraction form
    7,979.48/11,002.26 = 5,462.80/x
  3. Step 3: Cross multiply
    7,979.48x = 11,002.26 × 5,462.80
  4. Step 4: Simplify right side
    7,979.48x = 60,103,145.93
  5. Step 5: Solve for x
    x = 60,103,145.93/7,979.48
  6. Step 6: Final answer
    x = 7,532.21

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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.