Home / 18,487.44-25,521.12-11,782.24

Finding the Fourth Proportional to 18,487.44, 25,521.12 and 11,782.24

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Solution

The fourth proportional to 18,487.44, 25,521.12 and 11,782.24 is: 16,264.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.44 : 25,521.12 = 11,782.24 : x
  2. Step 2: Convert to fraction form
    18,487.44/25,521.12 = 11,782.24/x
  3. Step 3: Cross multiply
    18,487.44x = 25,521.12 × 11,782.24
  4. Step 4: Simplify right side
    18,487.44x = 300,695,960.91
  5. Step 5: Solve for x
    x = 300,695,960.91/18,487.44
  6. Step 6: Final answer
    x = 16,264.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.