Home / 18,005.20-27,006.52-4,858.32

Finding the Fourth Proportional to 18,005.20, 27,006.52 and 4,858.32

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Solution

The fourth proportional to 18,005.20, 27,006.52 and 4,858.32 is: 7,287.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,005.20 : 27,006.52 = 4,858.32 : x
  2. Step 2: Convert to fraction form
    18,005.20/27,006.52 = 4,858.32/x
  3. Step 3: Cross multiply
    18,005.20x = 27,006.52 × 4,858.32
  4. Step 4: Simplify right side
    18,005.20x = 131,206,316.25
  5. Step 5: Solve for x
    x = 131,206,316.25/18,005.20
  6. Step 6: Final answer
    x = 7,287.13

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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.