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Finding the Fourth Proportional to 10,661.10, 15,994.05 and 6,276.30

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Solution

The fourth proportional to 10,661.10, 15,994.05 and 6,276.30 is: 9,415.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661.10 : 15,994.05 = 6,276.30 : x
  2. Step 2: Convert to fraction form
    10,661.10/15,994.05 = 6,276.30/x
  3. Step 3: Cross multiply
    10,661.10x = 15,994.05 × 6,276.30
  4. Step 4: Simplify right side
    10,661.10x = 100,383,456.02
  5. Step 5: Solve for x
    x = 100,383,456.02/10,661.10
  6. Step 6: Final answer
    x = 9,415.86

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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.