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Finding the Fourth Proportional to 6,891.08, 9,495.60 and 6,518.89

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Solution

The fourth proportional to 6,891.08, 9,495.60 and 6,518.89 is: 8,982.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.08 : 9,495.60 = 6,518.89 : x
  2. Step 2: Convert to fraction form
    6,891.08/9,495.60 = 6,518.89/x
  3. Step 3: Cross multiply
    6,891.08x = 9,495.60 × 6,518.89
  4. Step 4: Simplify right side
    6,891.08x = 61,900,748.15
  5. Step 5: Solve for x
    x = 61,900,748.15/6,891.08
  6. Step 6: Final answer
    x = 8,982.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.