Home / 12,449.82-18,686.45-8,292.75

Finding the Fourth Proportional to 12,449.82, 18,686.45 and 8,292.75

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Solution

The fourth proportional to 12,449.82, 18,686.45 and 8,292.75 is: 12,446.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.82 : 18,686.45 = 8,292.75 : x
  2. Step 2: Convert to fraction form
    12,449.82/18,686.45 = 8,292.75/x
  3. Step 3: Cross multiply
    12,449.82x = 18,686.45 × 8,292.75
  4. Step 4: Simplify right side
    12,449.82x = 154,962,058.24
  5. Step 5: Solve for x
    x = 154,962,058.24/12,449.82
  6. Step 6: Final answer
    x = 12,446.93

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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.