Home / 8,986.45-12,403.11-6,159.55

Finding the Fourth Proportional to 8,986.45, 12,403.11 and 6,159.55

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Solution

The fourth proportional to 8,986.45, 12,403.11 and 6,159.55 is: 8,501.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.45 : 12,403.11 = 6,159.55 : x
  2. Step 2: Convert to fraction form
    8,986.45/12,403.11 = 6,159.55/x
  3. Step 3: Cross multiply
    8,986.45x = 12,403.11 × 6,159.55
  4. Step 4: Simplify right side
    8,986.45x = 76,397,576.20
  5. Step 5: Solve for x
    x = 76,397,576.20/8,986.45
  6. Step 6: Final answer
    x = 8,501.42

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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.