Home / 10,781.80-16,166.06-4,200.32

Finding the Fourth Proportional to 10,781.80, 16,166.06 and 4,200.32

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Solution

The fourth proportional to 10,781.80, 16,166.06 and 4,200.32 is: 6,297.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.80 : 16,166.06 = 4,200.32 : x
  2. Step 2: Convert to fraction form
    10,781.80/16,166.06 = 4,200.32/x
  3. Step 3: Cross multiply
    10,781.80x = 16,166.06 × 4,200.32
  4. Step 4: Simplify right side
    10,781.80x = 67,902,625.14
  5. Step 5: Solve for x
    x = 67,902,625.14/10,781.80
  6. Step 6: Final answer
    x = 6,297.89

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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.