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Finding the Fourth Proportional to 6,663.12, 9,994.62 and 5,203.44

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Solution

The fourth proportional to 6,663.12, 9,994.62 and 5,203.44 is: 7,805.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663.12 : 9,994.62 = 5,203.44 : x
  2. Step 2: Convert to fraction form
    6,663.12/9,994.62 = 5,203.44/x
  3. Step 3: Cross multiply
    6,663.12x = 9,994.62 × 5,203.44
  4. Step 4: Simplify right side
    6,663.12x = 52,006,405.49
  5. Step 5: Solve for x
    x = 52,006,405.49/6,663.12
  6. Step 6: Final answer
    x = 7,805.11

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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.