Home / 7,984.26-11,018.88-5,290.92

Finding the Fourth Proportional to 7,984.26, 11,018.88 and 5,290.92

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Solution

The fourth proportional to 7,984.26, 11,018.88 and 5,290.92 is: 7,301.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.26 : 11,018.88 = 5,290.92 : x
  2. Step 2: Convert to fraction form
    7,984.26/11,018.88 = 5,290.92/x
  3. Step 3: Cross multiply
    7,984.26x = 11,018.88 × 5,290.92
  4. Step 4: Simplify right side
    7,984.26x = 58,300,012.57
  5. Step 5: Solve for x
    x = 58,300,012.57/7,984.26
  6. Step 6: Final answer
    x = 7,301.87

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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.