Home / 8,743.18-13,126.21-5,191.79

Finding the Fourth Proportional to 8,743.18, 13,126.21 and 5,191.79

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Solution

The fourth proportional to 8,743.18, 13,126.21 and 5,191.79 is: 7,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.18 : 13,126.21 = 5,191.79 : x
  2. Step 2: Convert to fraction form
    8,743.18/13,126.21 = 5,191.79/x
  3. Step 3: Cross multiply
    8,743.18x = 13,126.21 × 5,191.79
  4. Step 4: Simplify right side
    8,743.18x = 68,148,525.82
  5. Step 5: Solve for x
    x = 68,148,525.82/8,743.18
  6. Step 6: Final answer
    x = 7,794.48

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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.