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Finding the Fourth Proportional to 12,445.44, 18,667.36 and 6,901.44

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Solution

The fourth proportional to 12,445.44, 18,667.36 and 6,901.44 is: 10,351.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.44 : 18,667.36 = 6,901.44 : x
  2. Step 2: Convert to fraction form
    12,445.44/18,667.36 = 6,901.44/x
  3. Step 3: Cross multiply
    12,445.44x = 18,667.36 × 6,901.44
  4. Step 4: Simplify right side
    12,445.44x = 128,831,665.00
  5. Step 5: Solve for x
    x = 128,831,665.00/12,445.44
  6. Step 6: Final answer
    x = 10,351.72

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.