Home / 9,974.20-14,955.90-4,131.40

Finding the Fourth Proportional to 9,974.20, 14,955.90 and 4,131.40

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Solution

The fourth proportional to 9,974.20, 14,955.90 and 4,131.40 is: 6,194.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,974.20 : 14,955.90 = 4,131.40 : x
  2. Step 2: Convert to fraction form
    9,974.20/14,955.90 = 4,131.40/x
  3. Step 3: Cross multiply
    9,974.20x = 14,955.90 × 4,131.40
  4. Step 4: Simplify right side
    9,974.20x = 61,788,805.26
  5. Step 5: Solve for x
    x = 61,788,805.26/9,974.20
  6. Step 6: Final answer
    x = 6,194.86

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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.