Home / 7,971.76-11,957.52-3,586.12

Finding the Fourth Proportional to 7,971.76, 11,957.52 and 3,586.12

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Solution

The fourth proportional to 7,971.76, 11,957.52 and 3,586.12 is: 5,379.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.76 : 11,957.52 = 3,586.12 : x
  2. Step 2: Convert to fraction form
    7,971.76/11,957.52 = 3,586.12/x
  3. Step 3: Cross multiply
    7,971.76x = 11,957.52 × 3,586.12
  4. Step 4: Simplify right side
    7,971.76x = 42,881,101.62
  5. Step 5: Solve for x
    x = 42,881,101.62/7,971.76
  6. Step 6: Final answer
    x = 5,379.13

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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.