Home / 15,913.41-21,961.19-8,839.83

Finding the Fourth Proportional to 15,913.41, 21,961.19 and 8,839.83

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Solution

The fourth proportional to 15,913.41, 21,961.19 and 8,839.83 is: 12,199.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,913.41 : 21,961.19 = 8,839.83 : x
  2. Step 2: Convert to fraction form
    15,913.41/21,961.19 = 8,839.83/x
  3. Step 3: Cross multiply
    15,913.41x = 21,961.19 × 8,839.83
  4. Step 4: Simplify right side
    15,913.41x = 194,133,290.65
  5. Step 5: Solve for x
    x = 194,133,290.65/15,913.41
  6. Step 6: Final answer
    x = 12,199.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.