Home / 13,801.69-19,039.97-8,132.57

Finding the Fourth Proportional to 13,801.69, 19,039.97 and 8,132.57

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Solution

The fourth proportional to 13,801.69, 19,039.97 and 8,132.57 is: 11,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801.69 : 19,039.97 = 8,132.57 : x
  2. Step 2: Convert to fraction form
    13,801.69/19,039.97 = 8,132.57/x
  3. Step 3: Cross multiply
    13,801.69x = 19,039.97 × 8,132.57
  4. Step 4: Simplify right side
    13,801.69x = 154,843,902.46
  5. Step 5: Solve for x
    x = 154,843,902.46/13,801.69
  6. Step 6: Final answer
    x = 11,219.20

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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.