Home / 14,398.89-19,872.36-8,112.48

Finding the Fourth Proportional to 14,398.89, 19,872.36 and 8,112.48

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Solution

The fourth proportional to 14,398.89, 19,872.36 and 8,112.48 is: 11,196.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,398.89 : 19,872.36 = 8,112.48 : x
  2. Step 2: Convert to fraction form
    14,398.89/19,872.36 = 8,112.48/x
  3. Step 3: Cross multiply
    14,398.89x = 19,872.36 × 8,112.48
  4. Step 4: Simplify right side
    14,398.89x = 161,214,123.05
  5. Step 5: Solve for x
    x = 161,214,123.05/14,398.89
  6. Step 6: Final answer
    x = 11,196.29

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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.