Home / 8,116.64-12,167.66-4,209.20

Finding the Fourth Proportional to 8,116.64, 12,167.66 and 4,209.20

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Solution

The fourth proportional to 8,116.64, 12,167.66 and 4,209.20 is: 6,310.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.64 : 12,167.66 = 4,209.20 : x
  2. Step 2: Convert to fraction form
    8,116.64/12,167.66 = 4,209.20/x
  3. Step 3: Cross multiply
    8,116.64x = 12,167.66 × 4,209.20
  4. Step 4: Simplify right side
    8,116.64x = 51,216,114.47
  5. Step 5: Solve for x
    x = 51,216,114.47/8,116.64
  6. Step 6: Final answer
    x = 6,310.01

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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.