Home / 7,972.56-11,961.63-2,709.18

Finding the Fourth Proportional to 7,972.56, 11,961.63 and 2,709.18

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Solution

The fourth proportional to 7,972.56, 11,961.63 and 2,709.18 is: 4,064.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.56 : 11,961.63 = 2,709.18 : x
  2. Step 2: Convert to fraction form
    7,972.56/11,961.63 = 2,709.18/x
  3. Step 3: Cross multiply
    7,972.56x = 11,961.63 × 2,709.18
  4. Step 4: Simplify right side
    7,972.56x = 32,406,208.76
  5. Step 5: Solve for x
    x = 32,406,208.76/7,972.56
  6. Step 6: Final answer
    x = 4,064.72

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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.