Home / 7,967.30-11,951.55-2,421.11

Finding the Fourth Proportional to 7,967.30, 11,951.55 and 2,421.11

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Solution

The fourth proportional to 7,967.30, 11,951.55 and 2,421.11 is: 3,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,967.30 : 11,951.55 = 2,421.11 : x
  2. Step 2: Convert to fraction form
    7,967.30/11,951.55 = 2,421.11/x
  3. Step 3: Cross multiply
    7,967.30x = 11,951.55 × 2,421.11
  4. Step 4: Simplify right side
    7,967.30x = 28,936,047.10
  5. Step 5: Solve for x
    x = 28,936,047.10/7,967.30
  6. Step 6: Final answer
    x = 3,631.85

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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.