Home / 10,291.63-15,431.61-3,270.28

Finding the Fourth Proportional to 10,291.63, 15,431.61 and 3,270.28

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Solution

The fourth proportional to 10,291.63, 15,431.61 and 3,270.28 is: 4,903.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,291.63 : 15,431.61 = 3,270.28 : x
  2. Step 2: Convert to fraction form
    10,291.63/15,431.61 = 3,270.28/x
  3. Step 3: Cross multiply
    10,291.63x = 15,431.61 × 3,270.28
  4. Step 4: Simplify right side
    10,291.63x = 50,465,685.55
  5. Step 5: Solve for x
    x = 50,465,685.55/10,291.63
  6. Step 6: Final answer
    x = 4,903.57

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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.