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Finding the Fourth Proportional to 6,805.82, 10,157 and 6,630.86

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Solution

The fourth proportional to 6,805.82, 10,157 and 6,630.86 is: 9,895.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,805.82 : 10,157 = 6,630.86 : x
  2. Step 2: Convert to fraction form
    6,805.82/10,157 = 6,630.86/x
  3. Step 3: Cross multiply
    6,805.82x = 10,157 × 6,630.86
  4. Step 4: Simplify right side
    6,805.82x = 67,349,645.02
  5. Step 5: Solve for x
    x = 67,349,645.02/6,805.82
  6. Step 6: Final answer
    x = 9,895.89

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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.