Home / 15,971.66-22,040.16-8,801.36

Finding the Fourth Proportional to 15,971.66, 22,040.16 and 8,801.36

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Solution

The fourth proportional to 15,971.66, 22,040.16 and 8,801.36 is: 12,145.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,971.66 : 22,040.16 = 8,801.36 : x
  2. Step 2: Convert to fraction form
    15,971.66/22,040.16 = 8,801.36/x
  3. Step 3: Cross multiply
    15,971.66x = 22,040.16 × 8,801.36
  4. Step 4: Simplify right side
    15,971.66x = 193,983,382.62
  5. Step 5: Solve for x
    x = 193,983,382.62/15,971.66
  6. Step 6: Final answer
    x = 12,145.47

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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.