Home / 13,841.28-19,101.42-7,873.20

Finding the Fourth Proportional to 13,841.28, 19,101.42 and 7,873.20

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Solution

The fourth proportional to 13,841.28, 19,101.42 and 7,873.20 is: 10,865.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.28 : 19,101.42 = 7,873.20 : x
  2. Step 2: Convert to fraction form
    13,841.28/19,101.42 = 7,873.20/x
  3. Step 3: Cross multiply
    13,841.28x = 19,101.42 × 7,873.20
  4. Step 4: Simplify right side
    13,841.28x = 150,389,299.94
  5. Step 5: Solve for x
    x = 150,389,299.94/13,841.28
  6. Step 6: Final answer
    x = 10,865.27

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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.