Home / 16,118.40-22,246.20-9,408

Finding the Fourth Proportional to 16,118.40, 22,246.20 and 9,408

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Solution

The fourth proportional to 16,118.40, 22,246.20 and 9,408 is: 12,984.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,118.40 : 22,246.20 = 9,408 : x
  2. Step 2: Convert to fraction form
    16,118.40/22,246.20 = 9,408/x
  3. Step 3: Cross multiply
    16,118.40x = 22,246.20 × 9,408
  4. Step 4: Simplify right side
    16,118.40x = 209,292,249.60
  5. Step 5: Solve for x
    x = 209,292,249.60/16,118.40
  6. Step 6: Final answer
    x = 12,984.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.