Home / 18,523.08-27,780.30-5,371.92

Finding the Fourth Proportional to 18,523.08, 27,780.30 and 5,371.92

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Solution

The fourth proportional to 18,523.08, 27,780.30 and 5,371.92 is: 8,056.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,523.08 : 27,780.30 = 5,371.92 : x
  2. Step 2: Convert to fraction form
    18,523.08/27,780.30 = 5,371.92/x
  3. Step 3: Cross multiply
    18,523.08x = 27,780.30 × 5,371.92
  4. Step 4: Simplify right side
    18,523.08x = 149,233,549.18
  5. Step 5: Solve for x
    x = 149,233,549.18/18,523.08
  6. Step 6: Final answer
    x = 8,056.63

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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.