Home / 13,972.86-20,959.28-3,584.61

Finding the Fourth Proportional to 13,972.86, 20,959.28 and 3,584.61

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Solution

The fourth proportional to 13,972.86, 20,959.28 and 3,584.61 is: 5,376.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.86 : 20,959.28 = 3,584.61 : x
  2. Step 2: Convert to fraction form
    13,972.86/20,959.28 = 3,584.61/x
  3. Step 3: Cross multiply
    13,972.86x = 20,959.28 × 3,584.61
  4. Step 4: Simplify right side
    13,972.86x = 75,130,826.76
  5. Step 5: Solve for x
    x = 75,130,826.76/13,972.86
  6. Step 6: Final answer
    x = 5,376.91

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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.