Home / 7,443.20-10,271.44-4,086.04

Finding the Fourth Proportional to 7,443.20, 10,271.44 and 4,086.04

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Solution

The fourth proportional to 7,443.20, 10,271.44 and 4,086.04 is: 5,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,443.20 : 10,271.44 = 4,086.04 : x
  2. Step 2: Convert to fraction form
    7,443.20/10,271.44 = 4,086.04/x
  3. Step 3: Cross multiply
    7,443.20x = 10,271.44 × 4,086.04
  4. Step 4: Simplify right side
    7,443.20x = 41,969,514.70
  5. Step 5: Solve for x
    x = 41,969,514.70/7,443.20
  6. Step 6: Final answer
    x = 5,638.64

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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.