Home / 8,725.65-13,088.37-2,151.90

Finding the Fourth Proportional to 8,725.65, 13,088.37 and 2,151.90

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Solution

The fourth proportional to 8,725.65, 13,088.37 and 2,151.90 is: 3,227.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,725.65 : 13,088.37 = 2,151.90 : x
  2. Step 2: Convert to fraction form
    8,725.65/13,088.37 = 2,151.90/x
  3. Step 3: Cross multiply
    8,725.65x = 13,088.37 × 2,151.90
  4. Step 4: Simplify right side
    8,725.65x = 28,164,863.40
  5. Step 5: Solve for x
    x = 28,164,863.40/8,725.65
  6. Step 6: Final answer
    x = 3,227.82

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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.