Home / 8,149.04-12,161.12-7,274.24

Finding the Fourth Proportional to 8,149.04, 12,161.12 and 7,274.24

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Solution

The fourth proportional to 8,149.04, 12,161.12 and 7,274.24 is: 10,855.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149.04 : 12,161.12 = 7,274.24 : x
  2. Step 2: Convert to fraction form
    8,149.04/12,161.12 = 7,274.24/x
  3. Step 3: Cross multiply
    8,149.04x = 12,161.12 × 7,274.24
  4. Step 4: Simplify right side
    8,149.04x = 88,462,905.55
  5. Step 5: Solve for x
    x = 88,462,905.55/8,149.04
  6. Step 6: Final answer
    x = 10,855.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.