Home / 8,206.13-12,245.15-7,322.55

Finding the Fourth Proportional to 8,206.13, 12,245.15 and 7,322.55

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Solution

The fourth proportional to 8,206.13, 12,245.15 and 7,322.55 is: 10,926.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,206.13 : 12,245.15 = 7,322.55 : x
  2. Step 2: Convert to fraction form
    8,206.13/12,245.15 = 7,322.55/x
  3. Step 3: Cross multiply
    8,206.13x = 12,245.15 × 7,322.55
  4. Step 4: Simplify right side
    8,206.13x = 89,665,686.52
  5. Step 5: Solve for x
    x = 89,665,686.52/8,206.13
  6. Step 6: Final answer
    x = 10,926.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.