Home / 10,086.89-15,130.31-4,805.87

Finding the Fourth Proportional to 10,086.89, 15,130.31 and 4,805.87

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Solution

The fourth proportional to 10,086.89, 15,130.31 and 4,805.87 is: 7,208.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,086.89 : 15,130.31 = 4,805.87 : x
  2. Step 2: Convert to fraction form
    10,086.89/15,130.31 = 4,805.87/x
  3. Step 3: Cross multiply
    10,086.89x = 15,130.31 × 4,805.87
  4. Step 4: Simplify right side
    10,086.89x = 72,714,203.24
  5. Step 5: Solve for x
    x = 72,714,203.24/10,086.89
  6. Step 6: Final answer
    x = 7,208.79

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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.