Home / 8,422.93-12,630.12-2,874.34

Finding the Fourth Proportional to 8,422.93, 12,630.12 and 2,874.34

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Solution

The fourth proportional to 8,422.93, 12,630.12 and 2,874.34 is: 4,310.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.93 : 12,630.12 = 2,874.34 : x
  2. Step 2: Convert to fraction form
    8,422.93/12,630.12 = 2,874.34/x
  3. Step 3: Cross multiply
    8,422.93x = 12,630.12 × 2,874.34
  4. Step 4: Simplify right side
    8,422.93x = 36,303,259.12
  5. Step 5: Solve for x
    x = 36,303,259.12/8,422.93
  6. Step 6: Final answer
    x = 4,310.05

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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.