Home / 13,947.90-20,922.52-4,587.71

Finding the Fourth Proportional to 13,947.90, 20,922.52 and 4,587.71

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Solution

The fourth proportional to 13,947.90, 20,922.52 and 4,587.71 is: 6,881.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.90 : 20,922.52 = 4,587.71 : x
  2. Step 2: Convert to fraction form
    13,947.90/20,922.52 = 4,587.71/x
  3. Step 3: Cross multiply
    13,947.90x = 20,922.52 × 4,587.71
  4. Step 4: Simplify right side
    13,947.90x = 95,986,454.23
  5. Step 5: Solve for x
    x = 95,986,454.23/13,947.90
  6. Step 6: Final answer
    x = 6,881.79

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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.