Home / 13,916.84-20,865.32-6,517.24

Finding the Fourth Proportional to 13,916.84, 20,865.32 and 6,517.24

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Solution

The fourth proportional to 13,916.84, 20,865.32 and 6,517.24 is: 9,771.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.84 : 20,865.32 = 6,517.24 : x
  2. Step 2: Convert to fraction form
    13,916.84/20,865.32 = 6,517.24/x
  3. Step 3: Cross multiply
    13,916.84x = 20,865.32 × 6,517.24
  4. Step 4: Simplify right side
    13,916.84x = 135,984,298.12
  5. Step 5: Solve for x
    x = 135,984,298.12/13,916.84
  6. Step 6: Final answer
    x = 9,771.21

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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.