Home / 13,110.04-19,619.82-8,110.36

Finding the Fourth Proportional to 13,110.04, 19,619.82 and 8,110.36

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Solution

The fourth proportional to 13,110.04, 19,619.82 and 8,110.36 is: 12,137.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.04 : 19,619.82 = 8,110.36 : x
  2. Step 2: Convert to fraction form
    13,110.04/19,619.82 = 8,110.36/x
  3. Step 3: Cross multiply
    13,110.04x = 19,619.82 × 8,110.36
  4. Step 4: Simplify right side
    13,110.04x = 159,123,803.34
  5. Step 5: Solve for x
    x = 159,123,803.34/13,110.04
  6. Step 6: Final answer
    x = 12,137.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.