Home / 12,426.35-17,149.10-7,049.05

Finding the Fourth Proportional to 12,426.35, 17,149.10 and 7,049.05

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Solution

The fourth proportional to 12,426.35, 17,149.10 and 7,049.05 is: 9,728.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426.35 : 17,149.10 = 7,049.05 : x
  2. Step 2: Convert to fraction form
    12,426.35/17,149.10 = 7,049.05/x
  3. Step 3: Cross multiply
    12,426.35x = 17,149.10 × 7,049.05
  4. Step 4: Simplify right side
    12,426.35x = 120,884,785.24
  5. Step 5: Solve for x
    x = 120,884,785.24/12,426.35
  6. Step 6: Final answer
    x = 9,728.10

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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.