Home / 17,721.88-26,580.57-11,127.94

Finding the Fourth Proportional to 17,721.88, 26,580.57 and 11,127.94

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Solution

The fourth proportional to 17,721.88, 26,580.57 and 11,127.94 is: 16,690.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,721.88 : 26,580.57 = 11,127.94 : x
  2. Step 2: Convert to fraction form
    17,721.88/26,580.57 = 11,127.94/x
  3. Step 3: Cross multiply
    17,721.88x = 26,580.57 × 11,127.94
  4. Step 4: Simplify right side
    17,721.88x = 295,786,988.13
  5. Step 5: Solve for x
    x = 295,786,988.13/17,721.88
  6. Step 6: Final answer
    x = 16,690.50

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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.