Home / 16,188.77-22,340.94-9,115.45

Finding the Fourth Proportional to 16,188.77, 22,340.94 and 9,115.45

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Solution

The fourth proportional to 16,188.77, 22,340.94 and 9,115.45 is: 12,579.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,188.77 : 22,340.94 = 9,115.45 : x
  2. Step 2: Convert to fraction form
    16,188.77/22,340.94 = 9,115.45/x
  3. Step 3: Cross multiply
    16,188.77x = 22,340.94 × 9,115.45
  4. Step 4: Simplify right side
    16,188.77x = 203,647,721.52
  5. Step 5: Solve for x
    x = 203,647,721.52/16,188.77
  6. Step 6: Final answer
    x = 12,579.57

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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.