Home / 16,131.06-22,261.41-9,415.62

Finding the Fourth Proportional to 16,131.06, 22,261.41 and 9,415.62

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Solution

The fourth proportional to 16,131.06, 22,261.41 and 9,415.62 is: 12,993.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,131.06 : 22,261.41 = 9,415.62 : x
  2. Step 2: Convert to fraction form
    16,131.06/22,261.41 = 9,415.62/x
  3. Step 3: Cross multiply
    16,131.06x = 22,261.41 × 9,415.62
  4. Step 4: Simplify right side
    16,131.06x = 209,604,977.22
  5. Step 5: Solve for x
    x = 209,604,977.22/16,131.06
  6. Step 6: Final answer
    x = 12,993.87

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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.