Home / 6,774.40-10,185.90-5,705.20

Finding the Fourth Proportional to 6,774.40, 10,185.90 and 5,705.20

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Solution

The fourth proportional to 6,774.40, 10,185.90 and 5,705.20 is: 8,578.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,774.40 : 10,185.90 = 5,705.20 : x
  2. Step 2: Convert to fraction form
    6,774.40/10,185.90 = 5,705.20/x
  3. Step 3: Cross multiply
    6,774.40x = 10,185.90 × 5,705.20
  4. Step 4: Simplify right side
    6,774.40x = 58,112,596.68
  5. Step 5: Solve for x
    x = 58,112,596.68/6,774.40
  6. Step 6: Final answer
    x = 8,578.26

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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.