Home / 13,928.70-19,218.65-8,265.29

Finding the Fourth Proportional to 13,928.70, 19,218.65 and 8,265.29

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Solution

The fourth proportional to 13,928.70, 19,218.65 and 8,265.29 is: 11,404.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.70 : 19,218.65 = 8,265.29 : x
  2. Step 2: Convert to fraction form
    13,928.70/19,218.65 = 8,265.29/x
  3. Step 3: Cross multiply
    13,928.70x = 19,218.65 × 8,265.29
  4. Step 4: Simplify right side
    13,928.70x = 158,847,626.29
  5. Step 5: Solve for x
    x = 158,847,626.29/13,928.70
  6. Step 6: Final answer
    x = 11,404.34

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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.