Home / 8,977.63-12,387.24-5,200.57

Finding the Fourth Proportional to 8,977.63, 12,387.24 and 5,200.57

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Solution

The fourth proportional to 8,977.63, 12,387.24 and 5,200.57 is: 7,175.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.63 : 12,387.24 = 5,200.57 : x
  2. Step 2: Convert to fraction form
    8,977.63/12,387.24 = 5,200.57/x
  3. Step 3: Cross multiply
    8,977.63x = 12,387.24 × 5,200.57
  4. Step 4: Simplify right side
    8,977.63x = 64,420,708.73
  5. Step 5: Solve for x
    x = 64,420,708.73/8,977.63
  6. Step 6: Final answer
    x = 7,175.69

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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.