Home / 12,085.38-18,127.26-3,319.56

Finding the Fourth Proportional to 12,085.38, 18,127.26 and 3,319.56

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Solution

The fourth proportional to 12,085.38, 18,127.26 and 3,319.56 is: 4,979.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085.38 : 18,127.26 = 3,319.56 : x
  2. Step 2: Convert to fraction form
    12,085.38/18,127.26 = 3,319.56/x
  3. Step 3: Cross multiply
    12,085.38x = 18,127.26 × 3,319.56
  4. Step 4: Simplify right side
    12,085.38x = 60,174,527.21
  5. Step 5: Solve for x
    x = 60,174,527.21/12,085.38
  6. Step 6: Final answer
    x = 4,979.12

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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.