Home / 10,097.60-15,147.08-3,431.38

Finding the Fourth Proportional to 10,097.60, 15,147.08 and 3,431.38

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Solution

The fourth proportional to 10,097.60, 15,147.08 and 3,431.38 is: 5,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,097.60 : 15,147.08 = 3,431.38 : x
  2. Step 2: Convert to fraction form
    10,097.60/15,147.08 = 3,431.38/x
  3. Step 3: Cross multiply
    10,097.60x = 15,147.08 × 3,431.38
  4. Step 4: Simplify right side
    10,097.60x = 51,975,392.92
  5. Step 5: Solve for x
    x = 51,975,392.92/10,097.60
  6. Step 6: Final answer
    x = 5,147.30

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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.