Home / 13,845.68-19,107.30-7,877.48

Finding the Fourth Proportional to 13,845.68, 19,107.30 and 7,877.48

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Solution

The fourth proportional to 13,845.68, 19,107.30 and 7,877.48 is: 10,871.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.68 : 19,107.30 = 7,877.48 : x
  2. Step 2: Convert to fraction form
    13,845.68/19,107.30 = 7,877.48/x
  3. Step 3: Cross multiply
    13,845.68x = 19,107.30 × 7,877.48
  4. Step 4: Simplify right side
    13,845.68x = 150,517,373.60
  5. Step 5: Solve for x
    x = 150,517,373.60/13,845.68
  6. Step 6: Final answer
    x = 10,871.07

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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.