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Finding the Fourth Proportional to 13,775.88, 19,010.79 and 8,110.88

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Solution

The fourth proportional to 13,775.88, 19,010.79 and 8,110.88 is: 11,193.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.88 : 19,010.79 = 8,110.88 : x
  2. Step 2: Convert to fraction form
    13,775.88/19,010.79 = 8,110.88/x
  3. Step 3: Cross multiply
    13,775.88x = 19,010.79 × 8,110.88
  4. Step 4: Simplify right side
    13,775.88x = 154,194,141.34
  5. Step 5: Solve for x
    x = 154,194,141.34/13,775.88
  6. Step 6: Final answer
    x = 11,193.05

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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.