Home / 8,718.16-13,077.12-2,144.40

Finding the Fourth Proportional to 8,718.16, 13,077.12 and 2,144.40

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Solution

The fourth proportional to 8,718.16, 13,077.12 and 2,144.40 is: 3,216.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.16 : 13,077.12 = 2,144.40 : x
  2. Step 2: Convert to fraction form
    8,718.16/13,077.12 = 2,144.40/x
  3. Step 3: Cross multiply
    8,718.16x = 13,077.12 × 2,144.40
  4. Step 4: Simplify right side
    8,718.16x = 28,042,565.88
  5. Step 5: Solve for x
    x = 28,042,565.88/8,718.16
  6. Step 6: Final answer
    x = 3,216.57

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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.