Home / 18,645.20-27,961.28-5,494.08

Finding the Fourth Proportional to 18,645.20, 27,961.28 and 5,494.08

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Solution

The fourth proportional to 18,645.20, 27,961.28 and 5,494.08 is: 8,239.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.20 : 27,961.28 = 5,494.08 : x
  2. Step 2: Convert to fraction form
    18,645.20/27,961.28 = 5,494.08/x
  3. Step 3: Cross multiply
    18,645.20x = 27,961.28 × 5,494.08
  4. Step 4: Simplify right side
    18,645.20x = 153,621,509.22
  5. Step 5: Solve for x
    x = 153,621,509.22/18,645.20
  6. Step 6: Final answer
    x = 8,239.20

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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.