Home / 18,036.87-27,055.30-6,948.78

Finding the Fourth Proportional to 18,036.87, 27,055.30 and 6,948.78

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Solution

The fourth proportional to 18,036.87, 27,055.30 and 6,948.78 is: 10,423.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,036.87 : 27,055.30 = 6,948.78 : x
  2. Step 2: Convert to fraction form
    18,036.87/27,055.30 = 6,948.78/x
  3. Step 3: Cross multiply
    18,036.87x = 27,055.30 × 6,948.78
  4. Step 4: Simplify right side
    18,036.87x = 188,001,327.53
  5. Step 5: Solve for x
    x = 188,001,327.53/18,036.87
  6. Step 6: Final answer
    x = 10,423.17

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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.