Home / 10,206.78-15,311.61-3,631.02

Finding the Fourth Proportional to 10,206.78, 15,311.61 and 3,631.02

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Solution

The fourth proportional to 10,206.78, 15,311.61 and 3,631.02 is: 5,447.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,206.78 : 15,311.61 = 3,631.02 : x
  2. Step 2: Convert to fraction form
    10,206.78/15,311.61 = 3,631.02/x
  3. Step 3: Cross multiply
    10,206.78x = 15,311.61 × 3,631.02
  4. Step 4: Simplify right side
    10,206.78x = 55,596,762.14
  5. Step 5: Solve for x
    x = 55,596,762.14/10,206.78
  6. Step 6: Final answer
    x = 5,447.04

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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.