Home / 12,508.72-18,744.44-11,402.28

Finding the Fourth Proportional to 12,508.72, 18,744.44 and 11,402.28

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Solution

The fourth proportional to 12,508.72, 18,744.44 and 11,402.28 is: 17,086.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,508.72 : 18,744.44 = 11,402.28 : x
  2. Step 2: Convert to fraction form
    12,508.72/18,744.44 = 11,402.28/x
  3. Step 3: Cross multiply
    12,508.72x = 18,744.44 × 11,402.28
  4. Step 4: Simplify right side
    12,508.72x = 213,729,353.32
  5. Step 5: Solve for x
    x = 213,729,353.32/12,508.72
  6. Step 6: Final answer
    x = 17,086.43

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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.