Home / 25,910.90-38,866.38-7,190.96

Finding the Fourth Proportional to 25,910.90, 38,866.38 and 7,190.96

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Solution

The fourth proportional to 25,910.90, 38,866.38 and 7,190.96 is: 10,786.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,910.90 : 38,866.38 = 7,190.96 : x
  2. Step 2: Convert to fraction form
    25,910.90/38,866.38 = 7,190.96/x
  3. Step 3: Cross multiply
    25,910.90x = 38,866.38 × 7,190.96
  4. Step 4: Simplify right side
    25,910.90x = 279,486,581.25
  5. Step 5: Solve for x
    x = 279,486,581.25/25,910.90
  6. Step 6: Final answer
    x = 10,786.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.