Home / 18,451.89-27,678.06-5,304.38

Finding the Fourth Proportional to 18,451.89, 27,678.06 and 5,304.38

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Solution

The fourth proportional to 18,451.89, 27,678.06 and 5,304.38 is: 7,956.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,451.89 : 27,678.06 = 5,304.38 : x
  2. Step 2: Convert to fraction form
    18,451.89/27,678.06 = 5,304.38/x
  3. Step 3: Cross multiply
    18,451.89x = 27,678.06 × 5,304.38
  4. Step 4: Simplify right side
    18,451.89x = 146,814,809.51
  5. Step 5: Solve for x
    x = 146,814,809.51/18,451.89
  6. Step 6: Final answer
    x = 7,956.63

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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.