Home / 8,631.96-12,945.70-2,392.53

Finding the Fourth Proportional to 8,631.96, 12,945.70 and 2,392.53

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Solution

The fourth proportional to 8,631.96, 12,945.70 and 2,392.53 is: 3,588.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.96 : 12,945.70 = 2,392.53 : x
  2. Step 2: Convert to fraction form
    8,631.96/12,945.70 = 2,392.53/x
  3. Step 3: Cross multiply
    8,631.96x = 12,945.70 × 2,392.53
  4. Step 4: Simplify right side
    8,631.96x = 30,972,975.62
  5. Step 5: Solve for x
    x = 30,972,975.62/8,631.96
  6. Step 6: Final answer
    x = 3,588.17

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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.