Home / 13,846.80-19,109.79-7,877.19

Finding the Fourth Proportional to 13,846.80, 19,109.79 and 7,877.19

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Solution

The fourth proportional to 13,846.80, 19,109.79 and 7,877.19 is: 10,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,846.80 : 19,109.79 = 7,877.19 : x
  2. Step 2: Convert to fraction form
    13,846.80/19,109.79 = 7,877.19/x
  3. Step 3: Cross multiply
    13,846.80x = 19,109.79 × 7,877.19
  4. Step 4: Simplify right side
    13,846.80x = 150,531,446.69
  5. Step 5: Solve for x
    x = 150,531,446.69/13,846.80
  6. Step 6: Final answer
    x = 10,871.21

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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.