Home / 8,721.90-13,088.25-3,527.82

Finding the Fourth Proportional to 8,721.90, 13,088.25 and 3,527.82

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Solution

The fourth proportional to 8,721.90, 13,088.25 and 3,527.82 is: 5,293.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.90 : 13,088.25 = 3,527.82 : x
  2. Step 2: Convert to fraction form
    8,721.90/13,088.25 = 3,527.82/x
  3. Step 3: Cross multiply
    8,721.90x = 13,088.25 × 3,527.82
  4. Step 4: Simplify right side
    8,721.90x = 46,172,990.12
  5. Step 5: Solve for x
    x = 46,172,990.12/8,721.90
  6. Step 6: Final answer
    x = 5,293.91

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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.