Home / 11,931.66-17,898.33-3,166.50

Finding the Fourth Proportional to 11,931.66, 17,898.33 and 3,166.50

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Solution

The fourth proportional to 11,931.66, 17,898.33 and 3,166.50 is: 4,749.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.66 : 17,898.33 = 3,166.50 : x
  2. Step 2: Convert to fraction form
    11,931.66/17,898.33 = 3,166.50/x
  3. Step 3: Cross multiply
    11,931.66x = 17,898.33 × 3,166.50
  4. Step 4: Simplify right side
    11,931.66x = 56,675,061.95
  5. Step 5: Solve for x
    x = 56,675,061.95/11,931.66
  6. Step 6: Final answer
    x = 4,749.97

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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.