Home / 13,911.28-19,197.82-7,623.28

Finding the Fourth Proportional to 13,911.28, 19,197.82 and 7,623.28

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Solution

The fourth proportional to 13,911.28, 19,197.82 and 7,623.28 is: 10,520.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.28 : 19,197.82 = 7,623.28 : x
  2. Step 2: Convert to fraction form
    13,911.28/19,197.82 = 7,623.28/x
  3. Step 3: Cross multiply
    13,911.28x = 19,197.82 × 7,623.28
  4. Step 4: Simplify right side
    13,911.28x = 146,350,357.25
  5. Step 5: Solve for x
    x = 146,350,357.25/13,911.28
  6. Step 6: Final answer
    x = 10,520.27

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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.