Home / 8,718.19-13,077.38-2,144.36

Finding the Fourth Proportional to 8,718.19, 13,077.38 and 2,144.36

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Solution

The fourth proportional to 8,718.19, 13,077.38 and 2,144.36 is: 3,216.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.19 : 13,077.38 = 2,144.36 : x
  2. Step 2: Convert to fraction form
    8,718.19/13,077.38 = 2,144.36/x
  3. Step 3: Cross multiply
    8,718.19x = 13,077.38 × 2,144.36
  4. Step 4: Simplify right side
    8,718.19x = 28,042,648.63
  5. Step 5: Solve for x
    x = 28,042,648.63/8,718.19
  6. Step 6: Final answer
    x = 3,216.57

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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.