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Finding the Fourth Proportional to 12,887.88, 17,784.97 and 7,583.04

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Solution

The fourth proportional to 12,887.88, 17,784.97 and 7,583.04 is: 10,464.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.88 : 17,784.97 = 7,583.04 : x
  2. Step 2: Convert to fraction form
    12,887.88/17,784.97 = 7,583.04/x
  3. Step 3: Cross multiply
    12,887.88x = 17,784.97 × 7,583.04
  4. Step 4: Simplify right side
    12,887.88x = 134,864,138.91
  5. Step 5: Solve for x
    x = 134,864,138.91/12,887.88
  6. Step 6: Final answer
    x = 10,464.42

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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.