Home / 13,916.60-20,877.20-6,896.94

Finding the Fourth Proportional to 13,916.60, 20,877.20 and 6,896.94

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Solution

The fourth proportional to 13,916.60, 20,877.20 and 6,896.94 is: 10,346.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.60 : 20,877.20 = 6,896.94 : x
  2. Step 2: Convert to fraction form
    13,916.60/20,877.20 = 6,896.94/x
  3. Step 3: Cross multiply
    13,916.60x = 20,877.20 × 6,896.94
  4. Step 4: Simplify right side
    13,916.60x = 143,988,795.77
  5. Step 5: Solve for x
    x = 143,988,795.77/13,916.60
  6. Step 6: Final answer
    x = 10,346.55

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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.