Home / 13,889.11-19,169.46-7,841.19

Finding the Fourth Proportional to 13,889.11, 19,169.46 and 7,841.19

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Solution

The fourth proportional to 13,889.11, 19,169.46 and 7,841.19 is: 10,822.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.11 : 19,169.46 = 7,841.19 : x
  2. Step 2: Convert to fraction form
    13,889.11/19,169.46 = 7,841.19/x
  3. Step 3: Cross multiply
    13,889.11x = 19,169.46 × 7,841.19
  4. Step 4: Simplify right side
    13,889.11x = 150,311,397.66
  5. Step 5: Solve for x
    x = 150,311,397.66/13,889.11
  6. Step 6: Final answer
    x = 10,822.25

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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.