Home / 8,385.12-11,543.04-6,392.16

Finding the Fourth Proportional to 8,385.12, 11,543.04 and 6,392.16

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Solution

The fourth proportional to 8,385.12, 11,543.04 and 6,392.16 is: 8,799.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.12 : 11,543.04 = 6,392.16 : x
  2. Step 2: Convert to fraction form
    8,385.12/11,543.04 = 6,392.16/x
  3. Step 3: Cross multiply
    8,385.12x = 11,543.04 × 6,392.16
  4. Step 4: Simplify right side
    8,385.12x = 73,784,958.57
  5. Step 5: Solve for x
    x = 73,784,958.57/8,385.12
  6. Step 6: Final answer
    x = 8,799.51

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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.