Home / 12,471.91-18,703.77-4,149.64

Finding the Fourth Proportional to 12,471.91, 18,703.77 and 4,149.64

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Solution

The fourth proportional to 12,471.91, 18,703.77 and 4,149.64 is: 6,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471.91 : 18,703.77 = 4,149.64 : x
  2. Step 2: Convert to fraction form
    12,471.91/18,703.77 = 4,149.64/x
  3. Step 3: Cross multiply
    12,471.91x = 18,703.77 × 4,149.64
  4. Step 4: Simplify right side
    12,471.91x = 77,613,912.14
  5. Step 5: Solve for x
    x = 77,613,912.14/12,471.91
  6. Step 6: Final answer
    x = 6,223.10

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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.