Home / 10,869.28-16,302.96-3,943.84

Finding the Fourth Proportional to 10,869.28, 16,302.96 and 3,943.84

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Solution

The fourth proportional to 10,869.28, 16,302.96 and 3,943.84 is: 5,915.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.28 : 16,302.96 = 3,943.84 : x
  2. Step 2: Convert to fraction form
    10,869.28/16,302.96 = 3,943.84/x
  3. Step 3: Cross multiply
    10,869.28x = 16,302.96 × 3,943.84
  4. Step 4: Simplify right side
    10,869.28x = 64,296,265.77
  5. Step 5: Solve for x
    x = 64,296,265.77/10,869.28
  6. Step 6: Final answer
    x = 5,915.41

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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.