Home / 6,821.90-10,218.05-4,181.56

Finding the Fourth Proportional to 6,821.90, 10,218.05 and 4,181.56

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Solution

The fourth proportional to 6,821.90, 10,218.05 and 4,181.56 is: 6,263.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.90 : 10,218.05 = 4,181.56 : x
  2. Step 2: Convert to fraction form
    6,821.90/10,218.05 = 4,181.56/x
  3. Step 3: Cross multiply
    6,821.90x = 10,218.05 × 4,181.56
  4. Step 4: Simplify right side
    6,821.90x = 42,727,342.71
  5. Step 5: Solve for x
    x = 42,727,342.71/6,821.90
  6. Step 6: Final answer
    x = 6,263.26

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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.