Home / 12,427.46-17,149.88-7,125.35

Finding the Fourth Proportional to 12,427.46, 17,149.88 and 7,125.35

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Solution

The fourth proportional to 12,427.46, 17,149.88 and 7,125.35 is: 9,832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.46 : 17,149.88 = 7,125.35 : x
  2. Step 2: Convert to fraction form
    12,427.46/17,149.88 = 7,125.35/x
  3. Step 3: Cross multiply
    12,427.46x = 17,149.88 × 7,125.35
  4. Step 4: Simplify right side
    12,427.46x = 122,198,776.08
  5. Step 5: Solve for x
    x = 122,198,776.08/12,427.46
  6. Step 6: Final answer
    x = 9,832.97

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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.