Home / 9,994.20-13,787.10-6,460.44

Finding the Fourth Proportional to 9,994.20, 13,787.10 and 6,460.44

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Solution

The fourth proportional to 9,994.20, 13,787.10 and 6,460.44 is: 8,912.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,994.20 : 13,787.10 = 6,460.44 : x
  2. Step 2: Convert to fraction form
    9,994.20/13,787.10 = 6,460.44/x
  3. Step 3: Cross multiply
    9,994.20x = 13,787.10 × 6,460.44
  4. Step 4: Simplify right side
    9,994.20x = 89,070,732.32
  5. Step 5: Solve for x
    x = 89,070,732.32/9,994.20
  6. Step 6: Final answer
    x = 8,912.24

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Double scale
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Similar ratio
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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.