Home / 26,649.66-39,930.75-9,109.92

Finding the Fourth Proportional to 26,649.66, 39,930.75 and 9,109.92

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Solution

The fourth proportional to 26,649.66, 39,930.75 and 9,109.92 is: 13,649.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,649.66 : 39,930.75 = 9,109.92 : x
  2. Step 2: Convert to fraction form
    26,649.66/39,930.75 = 9,109.92/x
  3. Step 3: Cross multiply
    26,649.66x = 39,930.75 × 9,109.92
  4. Step 4: Simplify right side
    26,649.66x = 363,765,938.04
  5. Step 5: Solve for x
    x = 363,765,938.04/26,649.66
  6. Step 6: Final answer
    x = 13,649.93

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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.