Home / 12,445.67-18,669.24-4,126.43

Finding the Fourth Proportional to 12,445.67, 18,669.24 and 4,126.43

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Solution

The fourth proportional to 12,445.67, 18,669.24 and 4,126.43 is: 6,189.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.67 : 18,669.24 = 4,126.43 : x
  2. Step 2: Convert to fraction form
    12,445.67/18,669.24 = 4,126.43/x
  3. Step 3: Cross multiply
    12,445.67x = 18,669.24 × 4,126.43
  4. Step 4: Simplify right side
    12,445.67x = 77,037,218.67
  5. Step 5: Solve for x
    x = 77,037,218.67/12,445.67
  6. Step 6: Final answer
    x = 6,189.88

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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.