Home / 11,546.90-17,320.32-2,781.80

Finding the Fourth Proportional to 11,546.90, 17,320.32 and 2,781.80

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Solution

The fourth proportional to 11,546.90, 17,320.32 and 2,781.80 is: 4,172.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,546.90 : 17,320.32 = 2,781.80 : x
  2. Step 2: Convert to fraction form
    11,546.90/17,320.32 = 2,781.80/x
  3. Step 3: Cross multiply
    11,546.90x = 17,320.32 × 2,781.80
  4. Step 4: Simplify right side
    11,546.90x = 48,181,666.18
  5. Step 5: Solve for x
    x = 48,181,666.18/11,546.90
  6. Step 6: Final answer
    x = 4,172.69

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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.