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Finding the Fourth Proportional to 17,889.52, 26,820.16 and 11,301.80

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Solution

The fourth proportional to 17,889.52, 26,820.16 and 11,301.80 is: 16,943.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,889.52 : 26,820.16 = 11,301.80 : x
  2. Step 2: Convert to fraction form
    17,889.52/26,820.16 = 11,301.80/x
  3. Step 3: Cross multiply
    17,889.52x = 26,820.16 × 11,301.80
  4. Step 4: Simplify right side
    17,889.52x = 303,116,084.29
  5. Step 5: Solve for x
    x = 303,116,084.29/17,889.52
  6. Step 6: Final answer
    x = 16,943.78

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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.