Home / 8,229.27-12,345.66-4,720.89

Finding the Fourth Proportional to 8,229.27, 12,345.66 and 4,720.89

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Solution

The fourth proportional to 8,229.27, 12,345.66 and 4,720.89 is: 7,082.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,229.27 : 12,345.66 = 4,720.89 : x
  2. Step 2: Convert to fraction form
    8,229.27/12,345.66 = 4,720.89/x
  3. Step 3: Cross multiply
    8,229.27x = 12,345.66 × 4,720.89
  4. Step 4: Simplify right side
    8,229.27x = 58,282,502.84
  5. Step 5: Solve for x
    x = 58,282,502.84/8,229.27
  6. Step 6: Final answer
    x = 7,082.34

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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.