Home / 11,951.31-17,928.60-4,159.11

Finding the Fourth Proportional to 11,951.31, 17,928.60 and 4,159.11

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Solution

The fourth proportional to 11,951.31, 17,928.60 and 4,159.11 is: 6,239.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,951.31 : 17,928.60 = 4,159.11 : x
  2. Step 2: Convert to fraction form
    11,951.31/17,928.60 = 4,159.11/x
  3. Step 3: Cross multiply
    11,951.31x = 17,928.60 × 4,159.11
  4. Step 4: Simplify right side
    11,951.31x = 74,567,019.55
  5. Step 5: Solve for x
    x = 74,567,019.55/11,951.31
  6. Step 6: Final answer
    x = 6,239.23

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1.5x scale

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.