Home / 10,218.16-15,321.73-3,101.41

Finding the Fourth Proportional to 10,218.16, 15,321.73 and 3,101.41

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Solution

The fourth proportional to 10,218.16, 15,321.73 and 3,101.41 is: 4,650.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.16 : 15,321.73 = 3,101.41 : x
  2. Step 2: Convert to fraction form
    10,218.16/15,321.73 = 3,101.41/x
  3. Step 3: Cross multiply
    10,218.16x = 15,321.73 × 3,101.41
  4. Step 4: Simplify right side
    10,218.16x = 47,518,966.64
  5. Step 5: Solve for x
    x = 47,518,966.64/10,218.16
  6. Step 6: Final answer
    x = 4,650.44

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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.