Home / 9,945.20-14,916.12-3,279.64

Finding the Fourth Proportional to 9,945.20, 14,916.12 and 3,279.64

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Solution

The fourth proportional to 9,945.20, 14,916.12 and 3,279.64 is: 4,918.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,945.20 : 14,916.12 = 3,279.64 : x
  2. Step 2: Convert to fraction form
    9,945.20/14,916.12 = 3,279.64/x
  3. Step 3: Cross multiply
    9,945.20x = 14,916.12 × 3,279.64
  4. Step 4: Simplify right side
    9,945.20x = 48,919,482.18
  5. Step 5: Solve for x
    x = 48,919,482.18/9,945.20
  6. Step 6: Final answer
    x = 4,918.91

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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.