Home / 18,438.32-27,648.84-6,743.36

Finding the Fourth Proportional to 18,438.32, 27,648.84 and 6,743.36

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Solution

The fourth proportional to 18,438.32, 27,648.84 and 6,743.36 is: 10,111.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.32 : 27,648.84 = 6,743.36 : x
  2. Step 2: Convert to fraction form
    18,438.32/27,648.84 = 6,743.36/x
  3. Step 3: Cross multiply
    18,438.32x = 27,648.84 × 6,743.36
  4. Step 4: Simplify right side
    18,438.32x = 186,446,081.70
  5. Step 5: Solve for x
    x = 186,446,081.70/18,438.32
  6. Step 6: Final answer
    x = 10,111.88

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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.