Home / 10,431.37-15,646.78-3,037.87

Finding the Fourth Proportional to 10,431.37, 15,646.78 and 3,037.87

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Solution

The fourth proportional to 10,431.37, 15,646.78 and 3,037.87 is: 4,556.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.37 : 15,646.78 = 3,037.87 : x
  2. Step 2: Convert to fraction form
    10,431.37/15,646.78 = 3,037.87/x
  3. Step 3: Cross multiply
    10,431.37x = 15,646.78 × 3,037.87
  4. Step 4: Simplify right side
    10,431.37x = 47,532,883.56
  5. Step 5: Solve for x
    x = 47,532,883.56/10,431.37
  6. Step 6: Final answer
    x = 4,556.72

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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.