Home / 15,980.19-22,053.41-8,906.66

Finding the Fourth Proportional to 15,980.19, 22,053.41 and 8,906.66

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Solution

The fourth proportional to 15,980.19, 22,053.41 and 8,906.66 is: 12,291.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,980.19 : 22,053.41 = 8,906.66 : x
  2. Step 2: Convert to fraction form
    15,980.19/22,053.41 = 8,906.66/x
  3. Step 3: Cross multiply
    15,980.19x = 22,053.41 × 8,906.66
  4. Step 4: Simplify right side
    15,980.19x = 196,422,169.58
  5. Step 5: Solve for x
    x = 196,422,169.58/15,980.19
  6. Step 6: Final answer
    x = 12,291.61

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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.