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Finding the Fourth Proportional to 6,656.70, 9,965.85 and 4,064.70

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Solution

The fourth proportional to 6,656.70, 9,965.85 and 4,064.70 is: 6,085.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,656.70 : 9,965.85 = 4,064.70 : x
  2. Step 2: Convert to fraction form
    6,656.70/9,965.85 = 4,064.70/x
  3. Step 3: Cross multiply
    6,656.70x = 9,965.85 × 4,064.70
  4. Step 4: Simplify right side
    6,656.70x = 40,508,190.50
  5. Step 5: Solve for x
    x = 40,508,190.50/6,656.70
  6. Step 6: Final answer
    x = 6,085.33

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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.