Home / 6,690.75-10,087.46-6,239.05

Finding the Fourth Proportional to 6,690.75, 10,087.46 and 6,239.05

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Solution

The fourth proportional to 6,690.75, 10,087.46 and 6,239.05 is: 9,406.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.75 : 10,087.46 = 6,239.05 : x
  2. Step 2: Convert to fraction form
    6,690.75/10,087.46 = 6,239.05/x
  3. Step 3: Cross multiply
    6,690.75x = 10,087.46 × 6,239.05
  4. Step 4: Simplify right side
    6,690.75x = 62,936,180.21
  5. Step 5: Solve for x
    x = 62,936,180.21/6,690.75
  6. Step 6: Final answer
    x = 9,406.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.