Home / 8,941.80-12,339-5,163.24

Finding the Fourth Proportional to 8,941.80, 12,339 and 5,163.24

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Solution

The fourth proportional to 8,941.80, 12,339 and 5,163.24 is: 7,124.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,941.80 : 12,339 = 5,163.24 : x
  2. Step 2: Convert to fraction form
    8,941.80/12,339 = 5,163.24/x
  3. Step 3: Cross multiply
    8,941.80x = 12,339 × 5,163.24
  4. Step 4: Simplify right side
    8,941.80x = 63,709,218.36
  5. Step 5: Solve for x
    x = 63,709,218.36/8,941.80
  6. Step 6: Final answer
    x = 7,124.88

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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.