Home / 18,412.24-27,618.36-8,031.28

Finding the Fourth Proportional to 18,412.24, 27,618.36 and 8,031.28

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Solution

The fourth proportional to 18,412.24, 27,618.36 and 8,031.28 is: 12,046.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,412.24 : 27,618.36 = 8,031.28 : x
  2. Step 2: Convert to fraction form
    18,412.24/27,618.36 = 8,031.28/x
  3. Step 3: Cross multiply
    18,412.24x = 27,618.36 × 8,031.28
  4. Step 4: Simplify right side
    18,412.24x = 221,810,782.30
  5. Step 5: Solve for x
    x = 221,810,782.30/18,412.24
  6. Step 6: Final answer
    x = 12,046.92

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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.