Home / 8,168.30-11,278.59-6,276.89

Finding the Fourth Proportional to 8,168.30, 11,278.59 and 6,276.89

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Solution

The fourth proportional to 8,168.30, 11,278.59 and 6,276.89 is: 8,666.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.30 : 11,278.59 = 6,276.89 : x
  2. Step 2: Convert to fraction form
    8,168.30/11,278.59 = 6,276.89/x
  3. Step 3: Cross multiply
    8,168.30x = 11,278.59 × 6,276.89
  4. Step 4: Simplify right side
    8,168.30x = 70,794,468.79
  5. Step 5: Solve for x
    x = 70,794,468.79/8,168.30
  6. Step 6: Final answer
    x = 8,666.98

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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.