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Finding the Fourth Proportional to 6.70, 10 and 6.37

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Solution

The fourth proportional to 6.70, 10 and 6.37 is: 9.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.70 : 10 = 6.37 : x
  2. Step 2: Convert to fraction form
    6.70/10 = 6.37/x
  3. Step 3: Cross multiply
    6.70x = 10 × 6.37
  4. Step 4: Simplify right side
    6.70x = 63.70
  5. Step 5: Solve for x
    x = 63.70/6.70
  6. Step 6: Final answer
    x = 9.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.