Home / 13,909.35-19,194.78-7,535.80

Finding the Fourth Proportional to 13,909.35, 19,194.78 and 7,535.80

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Solution

The fourth proportional to 13,909.35, 19,194.78 and 7,535.80 is: 10,399.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.35 : 19,194.78 = 7,535.80 : x
  2. Step 2: Convert to fraction form
    13,909.35/19,194.78 = 7,535.80/x
  3. Step 3: Cross multiply
    13,909.35x = 19,194.78 × 7,535.80
  4. Step 4: Simplify right side
    13,909.35x = 144,648,023.12
  5. Step 5: Solve for x
    x = 144,648,023.12/13,909.35
  6. Step 6: Final answer
    x = 10,399.34

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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.