Home / 18,479.24-27,712.56-5,328.08

Finding the Fourth Proportional to 18,479.24, 27,712.56 and 5,328.08

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Solution

The fourth proportional to 18,479.24, 27,712.56 and 5,328.08 is: 7,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,479.24 : 27,712.56 = 5,328.08 : x
  2. Step 2: Convert to fraction form
    18,479.24/27,712.56 = 5,328.08/x
  3. Step 3: Cross multiply
    18,479.24x = 27,712.56 × 5,328.08
  4. Step 4: Simplify right side
    18,479.24x = 147,654,736.68
  5. Step 5: Solve for x
    x = 147,654,736.68/18,479.24
  6. Step 6: Final answer
    x = 7,990.30

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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.