Home / 13,120.74-19,673.89-8,965.44

Finding the Fourth Proportional to 13,120.74, 19,673.89 and 8,965.44

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Solution

The fourth proportional to 13,120.74, 19,673.89 and 8,965.44 is: 13,443.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.74 : 19,673.89 = 8,965.44 : x
  2. Step 2: Convert to fraction form
    13,120.74/19,673.89 = 8,965.44/x
  3. Step 3: Cross multiply
    13,120.74x = 19,673.89 × 8,965.44
  4. Step 4: Simplify right side
    13,120.74x = 176,385,035.53
  5. Step 5: Solve for x
    x = 176,385,035.53/13,120.74
  6. Step 6: Final answer
    x = 13,443.22

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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.