Home / 10,913.04-16,372.28-3,121.92

Finding the Fourth Proportional to 10,913.04, 16,372.28 and 3,121.92

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Solution

The fourth proportional to 10,913.04, 16,372.28 and 3,121.92 is: 4,683.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.04 : 16,372.28 = 3,121.92 : x
  2. Step 2: Convert to fraction form
    10,913.04/16,372.28 = 3,121.92/x
  3. Step 3: Cross multiply
    10,913.04x = 16,372.28 × 3,121.92
  4. Step 4: Simplify right side
    10,913.04x = 51,112,948.38
  5. Step 5: Solve for x
    x = 51,112,948.38/10,913.04
  6. Step 6: Final answer
    x = 4,683.66

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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.