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Finding the Fourth Proportional to 6,994.18, 10,494.90 and 6,590.80

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Solution

The fourth proportional to 6,994.18, 10,494.90 and 6,590.80 is: 9,889.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,994.18 : 10,494.90 = 6,590.80 : x
  2. Step 2: Convert to fraction form
    6,994.18/10,494.90 = 6,590.80/x
  3. Step 3: Cross multiply
    6,994.18x = 10,494.90 × 6,590.80
  4. Step 4: Simplify right side
    6,994.18x = 69,169,786.92
  5. Step 5: Solve for x
    x = 69,169,786.92/6,994.18
  6. Step 6: Final answer
    x = 9,889.62

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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.