Home / 14,399.76-19,872.06-8,112.36

Finding the Fourth Proportional to 14,399.76, 19,872.06 and 8,112.36

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Solution

The fourth proportional to 14,399.76, 19,872.06 and 8,112.36 is: 11,195.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,399.76 : 19,872.06 = 8,112.36 : x
  2. Step 2: Convert to fraction form
    14,399.76/19,872.06 = 8,112.36/x
  3. Step 3: Cross multiply
    14,399.76x = 19,872.06 × 8,112.36
  4. Step 4: Simplify right side
    14,399.76x = 161,209,304.66
  5. Step 5: Solve for x
    x = 161,209,304.66/14,399.76
  6. Step 6: Final answer
    x = 11,195.28

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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.