Home / 11,916.24-17,868.80-4,419.50

Finding the Fourth Proportional to 11,916.24, 17,868.80 and 4,419.50

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Solution

The fourth proportional to 11,916.24, 17,868.80 and 4,419.50 is: 6,627.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.24 : 17,868.80 = 4,419.50 : x
  2. Step 2: Convert to fraction form
    11,916.24/17,868.80 = 4,419.50/x
  3. Step 3: Cross multiply
    11,916.24x = 17,868.80 × 4,419.50
  4. Step 4: Simplify right side
    11,916.24x = 78,971,083.30
  5. Step 5: Solve for x
    x = 78,971,083.30/11,916.24
  6. Step 6: Final answer
    x = 6,627.18

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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.