Home / 10,486.27-15,729.53-3,090.87

Finding the Fourth Proportional to 10,486.27, 15,729.53 and 3,090.87

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Solution

The fourth proportional to 10,486.27, 15,729.53 and 3,090.87 is: 4,636.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,486.27 : 15,729.53 = 3,090.87 : x
  2. Step 2: Convert to fraction form
    10,486.27/15,729.53 = 3,090.87/x
  3. Step 3: Cross multiply
    10,486.27x = 15,729.53 × 3,090.87
  4. Step 4: Simplify right side
    10,486.27x = 48,617,940.12
  5. Step 5: Solve for x
    x = 48,617,940.12/10,486.27
  6. Step 6: Final answer
    x = 4,636.34

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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.