Home / 18,470.11-27,686.69-6,620.66

Finding the Fourth Proportional to 18,470.11, 27,686.69 and 6,620.66

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Solution

The fourth proportional to 18,470.11, 27,686.69 and 6,620.66 is: 9,924.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,470.11 : 27,686.69 = 6,620.66 : x
  2. Step 2: Convert to fraction form
    18,470.11/27,686.69 = 6,620.66/x
  3. Step 3: Cross multiply
    18,470.11x = 27,686.69 × 6,620.66
  4. Step 4: Simplify right side
    18,470.11x = 183,304,161.02
  5. Step 5: Solve for x
    x = 183,304,161.02/18,470.11
  6. Step 6: Final answer
    x = 9,924.37

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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.