Home / 18,188.99-27,280.44-5,042.69

Finding the Fourth Proportional to 18,188.99, 27,280.44 and 5,042.69

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Solution

The fourth proportional to 18,188.99, 27,280.44 and 5,042.69 is: 7,563.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.99 : 27,280.44 = 5,042.69 : x
  2. Step 2: Convert to fraction form
    18,188.99/27,280.44 = 5,042.69/x
  3. Step 3: Cross multiply
    18,188.99x = 27,280.44 × 5,042.69
  4. Step 4: Simplify right side
    18,188.99x = 137,566,665.58
  5. Step 5: Solve for x
    x = 137,566,665.58/18,188.99
  6. Step 6: Final answer
    x = 7,563.19

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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.