Home / 16,291.11-22,480.88-9,216.39

Finding the Fourth Proportional to 16,291.11, 22,480.88 and 9,216.39

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Solution

The fourth proportional to 16,291.11, 22,480.88 and 9,216.39 is: 12,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,291.11 : 22,480.88 = 9,216.39 : x
  2. Step 2: Convert to fraction form
    16,291.11/22,480.88 = 9,216.39/x
  3. Step 3: Cross multiply
    16,291.11x = 22,480.88 × 9,216.39
  4. Step 4: Simplify right side
    16,291.11x = 207,192,511.54
  5. Step 5: Solve for x
    x = 207,192,511.54/16,291.11
  6. Step 6: Final answer
    x = 12,718.13

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1.5x scale

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.