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Finding the Fourth Proportional to 12,087.78, 16,674.84 and 7,603.08

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Solution

The fourth proportional to 12,087.78, 16,674.84 and 7,603.08 is: 10,488.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.78 : 16,674.84 = 7,603.08 : x
  2. Step 2: Convert to fraction form
    12,087.78/16,674.84 = 7,603.08/x
  3. Step 3: Cross multiply
    12,087.78x = 16,674.84 × 7,603.08
  4. Step 4: Simplify right side
    12,087.78x = 126,780,142.51
  5. Step 5: Solve for x
    x = 126,780,142.51/12,087.78
  6. Step 6: Final answer
    x = 10,488.29

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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.