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Finding the Fourth Proportional to 12,250.40, 18,375.60 and 9,334.40

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Solution

The fourth proportional to 12,250.40, 18,375.60 and 9,334.40 is: 14,001.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.40 : 18,375.60 = 9,334.40 : x
  2. Step 2: Convert to fraction form
    12,250.40/18,375.60 = 9,334.40/x
  3. Step 3: Cross multiply
    12,250.40x = 18,375.60 × 9,334.40
  4. Step 4: Simplify right side
    12,250.40x = 171,525,200.64
  5. Step 5: Solve for x
    x = 171,525,200.64/12,250.40
  6. Step 6: Final answer
    x = 14,001.60

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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.