Home / 7,108.20-10,640.70-6,330.60

Finding the Fourth Proportional to 7,108.20, 10,640.70 and 6,330.60

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Solution

The fourth proportional to 7,108.20, 10,640.70 and 6,330.60 is: 9,476.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.20 : 10,640.70 = 6,330.60 : x
  2. Step 2: Convert to fraction form
    7,108.20/10,640.70 = 6,330.60/x
  3. Step 3: Cross multiply
    7,108.20x = 10,640.70 × 6,330.60
  4. Step 4: Simplify right side
    7,108.20x = 67,362,015.42
  5. Step 5: Solve for x
    x = 67,362,015.42/7,108.20
  6. Step 6: Final answer
    x = 9,476.66

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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.