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Finding the Fourth Proportional to 12,839.44, 19,232.88 and 8,880.88

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Solution

The fourth proportional to 12,839.44, 19,232.88 and 8,880.88 is: 13,303.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839.44 : 19,232.88 = 8,880.88 : x
  2. Step 2: Convert to fraction form
    12,839.44/19,232.88 = 8,880.88/x
  3. Step 3: Cross multiply
    12,839.44x = 19,232.88 × 8,880.88
  4. Step 4: Simplify right side
    12,839.44x = 170,804,899.33
  5. Step 5: Solve for x
    x = 170,804,899.33/12,839.44
  6. Step 6: Final answer
    x = 13,303.14

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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.