Home / 12,141.18-18,211.80-3,376.10

Finding the Fourth Proportional to 12,141.18, 18,211.80 and 3,376.10

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Solution

The fourth proportional to 12,141.18, 18,211.80 and 3,376.10 is: 5,064.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141.18 : 18,211.80 = 3,376.10 : x
  2. Step 2: Convert to fraction form
    12,141.18/18,211.80 = 3,376.10/x
  3. Step 3: Cross multiply
    12,141.18x = 18,211.80 × 3,376.10
  4. Step 4: Simplify right side
    12,141.18x = 61,484,766.92
  5. Step 5: Solve for x
    x = 61,484,766.92/12,141.18
  6. Step 6: Final answer
    x = 5,064.15

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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.