Home / 10,916.20-16,366.20-3,516.40

Finding the Fourth Proportional to 10,916.20, 16,366.20 and 3,516.40

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Solution

The fourth proportional to 10,916.20, 16,366.20 and 3,516.40 is: 5,271.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,916.20 : 16,366.20 = 3,516.40 : x
  2. Step 2: Convert to fraction form
    10,916.20/16,366.20 = 3,516.40/x
  3. Step 3: Cross multiply
    10,916.20x = 16,366.20 × 3,516.40
  4. Step 4: Simplify right side
    10,916.20x = 57,550,105.68
  5. Step 5: Solve for x
    x = 57,550,105.68/10,916.20
  6. Step 6: Final answer
    x = 5,271.99

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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.