Home / 26,911.60-40,371.12-7,190.80

Finding the Fourth Proportional to 26,911.60, 40,371.12 and 7,190.80

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Solution

The fourth proportional to 26,911.60, 40,371.12 and 7,190.80 is: 10,787.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,911.60 : 40,371.12 = 7,190.80 : x
  2. Step 2: Convert to fraction form
    26,911.60/40,371.12 = 7,190.80/x
  3. Step 3: Cross multiply
    26,911.60x = 40,371.12 × 7,190.80
  4. Step 4: Simplify right side
    26,911.60x = 290,300,649.70
  5. Step 5: Solve for x
    x = 290,300,649.70/26,911.60
  6. Step 6: Final answer
    x = 10,787.19

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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.