Home / 11,866.57-17,799.35-2,981.88

Finding the Fourth Proportional to 11,866.57, 17,799.35 and 2,981.88

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Solution

The fourth proportional to 11,866.57, 17,799.35 and 2,981.88 is: 4,472.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,866.57 : 17,799.35 = 2,981.88 : x
  2. Step 2: Convert to fraction form
    11,866.57/17,799.35 = 2,981.88/x
  3. Step 3: Cross multiply
    11,866.57x = 17,799.35 × 2,981.88
  4. Step 4: Simplify right side
    11,866.57x = 53,075,510.87
  5. Step 5: Solve for x
    x = 53,075,510.87/11,866.57
  6. Step 6: Final answer
    x = 4,472.69

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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.