Home / 8,627.10-12,932.73-2,780.70

Finding the Fourth Proportional to 8,627.10, 12,932.73 and 2,780.70

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Solution

The fourth proportional to 8,627.10, 12,932.73 and 2,780.70 is: 4,168.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.10 : 12,932.73 = 2,780.70 : x
  2. Step 2: Convert to fraction form
    8,627.10/12,932.73 = 2,780.70/x
  3. Step 3: Cross multiply
    8,627.10x = 12,932.73 × 2,780.70
  4. Step 4: Simplify right side
    8,627.10x = 35,962,042.31
  5. Step 5: Solve for x
    x = 35,962,042.31/8,627.10
  6. Step 6: Final answer
    x = 4,168.50

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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.