Home / 12,462.20-17,195.87-7,426.30

Finding the Fourth Proportional to 12,462.20, 17,195.87 and 7,426.30

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Solution

The fourth proportional to 12,462.20, 17,195.87 and 7,426.30 is: 10,247.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462.20 : 17,195.87 = 7,426.30 : x
  2. Step 2: Convert to fraction form
    12,462.20/17,195.87 = 7,426.30/x
  3. Step 3: Cross multiply
    12,462.20x = 17,195.87 × 7,426.30
  4. Step 4: Simplify right side
    12,462.20x = 127,701,664.96
  5. Step 5: Solve for x
    x = 127,701,664.96/12,462.20
  6. Step 6: Final answer
    x = 10,247.12

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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.