Home / 8,218.02-12,305.97-5,715.66

Finding the Fourth Proportional to 8,218.02, 12,305.97 and 5,715.66

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Solution

The fourth proportional to 8,218.02, 12,305.97 and 5,715.66 is: 8,558.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.02 : 12,305.97 = 5,715.66 : x
  2. Step 2: Convert to fraction form
    8,218.02/12,305.97 = 5,715.66/x
  3. Step 3: Cross multiply
    8,218.02x = 12,305.97 × 5,715.66
  4. Step 4: Simplify right side
    8,218.02x = 70,336,740.49
  5. Step 5: Solve for x
    x = 70,336,740.49/8,218.02
  6. Step 6: Final answer
    x = 8,558.84

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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.