Home / 10,622.28-15,940.68-3,696.78

Finding the Fourth Proportional to 10,622.28, 15,940.68 and 3,696.78

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Solution

The fourth proportional to 10,622.28, 15,940.68 and 3,696.78 is: 5,547.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,622.28 : 15,940.68 = 3,696.78 : x
  2. Step 2: Convert to fraction form
    10,622.28/15,940.68 = 3,696.78/x
  3. Step 3: Cross multiply
    10,622.28x = 15,940.68 × 3,696.78
  4. Step 4: Simplify right side
    10,622.28x = 58,929,187.01
  5. Step 5: Solve for x
    x = 58,929,187.01/10,622.28
  6. Step 6: Final answer
    x = 5,547.70

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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.