Home / 9,989.22-14,974.92-4,142.10

Finding the Fourth Proportional to 9,989.22, 14,974.92 and 4,142.10

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Solution

The fourth proportional to 9,989.22, 14,974.92 and 4,142.10 is: 6,209.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989.22 : 14,974.92 = 4,142.10 : x
  2. Step 2: Convert to fraction form
    9,989.22/14,974.92 = 4,142.10/x
  3. Step 3: Cross multiply
    9,989.22x = 14,974.92 × 4,142.10
  4. Step 4: Simplify right side
    9,989.22x = 62,027,616.13
  5. Step 5: Solve for x
    x = 62,027,616.13/9,989.22
  6. Step 6: Final answer
    x = 6,209.46

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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.