Home / 8,728.20-12,049.22-6,836.52

Finding the Fourth Proportional to 8,728.20, 12,049.22 and 6,836.52

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Solution

The fourth proportional to 8,728.20, 12,049.22 and 6,836.52 is: 9,437.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.20 : 12,049.22 = 6,836.52 : x
  2. Step 2: Convert to fraction form
    8,728.20/12,049.22 = 6,836.52/x
  3. Step 3: Cross multiply
    8,728.20x = 12,049.22 × 6,836.52
  4. Step 4: Simplify right side
    8,728.20x = 82,374,733.51
  5. Step 5: Solve for x
    x = 82,374,733.51/8,728.20
  6. Step 6: Final answer
    x = 9,437.77

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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.