Home / 18,314.97-27,470.55-12,429.66

Finding the Fourth Proportional to 18,314.97, 27,470.55 and 12,429.66

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Solution

The fourth proportional to 18,314.97, 27,470.55 and 12,429.66 is: 18,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,314.97 : 27,470.55 = 12,429.66 : x
  2. Step 2: Convert to fraction form
    18,314.97/27,470.55 = 12,429.66/x
  3. Step 3: Cross multiply
    18,314.97x = 27,470.55 × 12,429.66
  4. Step 4: Simplify right side
    18,314.97x = 341,449,596.51
  5. Step 5: Solve for x
    x = 341,449,596.51/18,314.97
  6. Step 6: Final answer
    x = 18,643.20

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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.