Home / 10,905.20-16,377.60-9,544.40

Finding the Fourth Proportional to 10,905.20, 16,377.60 and 9,544.40

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Solution

The fourth proportional to 10,905.20, 16,377.60 and 9,544.40 is: 14,333.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.20 : 16,377.60 = 9,544.40 : x
  2. Step 2: Convert to fraction form
    10,905.20/16,377.60 = 9,544.40/x
  3. Step 3: Cross multiply
    10,905.20x = 16,377.60 × 9,544.40
  4. Step 4: Simplify right side
    10,905.20x = 156,314,365.44
  5. Step 5: Solve for x
    x = 156,314,365.44/10,905.20
  6. Step 6: Final answer
    x = 14,333.93

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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.