Home / 11,022.78-16,531.08-3,124.65

Finding the Fourth Proportional to 11,022.78, 16,531.08 and 3,124.65

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Solution

The fourth proportional to 11,022.78, 16,531.08 and 3,124.65 is: 4,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,022.78 : 16,531.08 = 3,124.65 : x
  2. Step 2: Convert to fraction form
    11,022.78/16,531.08 = 3,124.65/x
  3. Step 3: Cross multiply
    11,022.78x = 16,531.08 × 3,124.65
  4. Step 4: Simplify right side
    11,022.78x = 51,653,839.12
  5. Step 5: Solve for x
    x = 51,653,839.12/11,022.78
  6. Step 6: Final answer
    x = 4,686.10

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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.