Home / 8,169.12-11,273.76-6,282.72

Finding the Fourth Proportional to 8,169.12, 11,273.76 and 6,282.72

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Solution

The fourth proportional to 8,169.12, 11,273.76 and 6,282.72 is: 8,670.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.12 : 11,273.76 = 6,282.72 : x
  2. Step 2: Convert to fraction form
    8,169.12/11,273.76 = 6,282.72/x
  3. Step 3: Cross multiply
    8,169.12x = 11,273.76 × 6,282.72
  4. Step 4: Simplify right side
    8,169.12x = 70,829,877.43
  5. Step 5: Solve for x
    x = 70,829,877.43/8,169.12
  6. Step 6: Final answer
    x = 8,670.44

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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.