Home / 10,016.91-15,031.50-5,090.07

Finding the Fourth Proportional to 10,016.91, 15,031.50 and 5,090.07

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Solution

The fourth proportional to 10,016.91, 15,031.50 and 5,090.07 is: 7,638.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,016.91 : 15,031.50 = 5,090.07 : x
  2. Step 2: Convert to fraction form
    10,016.91/15,031.50 = 5,090.07/x
  3. Step 3: Cross multiply
    10,016.91x = 15,031.50 × 5,090.07
  4. Step 4: Simplify right side
    10,016.91x = 76,511,387.21
  5. Step 5: Solve for x
    x = 76,511,387.21/10,016.91
  6. Step 6: Final answer
    x = 7,638.22

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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.