Home / 15,759.44-21,741.13-11,281.55

Finding the Fourth Proportional to 15,759.44, 21,741.13 and 11,281.55

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Solution

The fourth proportional to 15,759.44, 21,741.13 and 11,281.55 is: 15,563.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,759.44 : 21,741.13 = 11,281.55 : x
  2. Step 2: Convert to fraction form
    15,759.44/21,741.13 = 11,281.55/x
  3. Step 3: Cross multiply
    15,759.44x = 21,741.13 × 11,281.55
  4. Step 4: Simplify right side
    15,759.44x = 245,273,671.30
  5. Step 5: Solve for x
    x = 245,273,671.30/15,759.44
  6. Step 6: Final answer
    x = 15,563.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.