Home / 16,889.09-23,306.28-9,721.31

Finding the Fourth Proportional to 16,889.09, 23,306.28 and 9,721.31

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Solution

The fourth proportional to 16,889.09, 23,306.28 and 9,721.31 is: 13,415.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,889.09 : 23,306.28 = 9,721.31 : x
  2. Step 2: Convert to fraction form
    16,889.09/23,306.28 = 9,721.31/x
  3. Step 3: Cross multiply
    16,889.09x = 23,306.28 × 9,721.31
  4. Step 4: Simplify right side
    16,889.09x = 226,567,456.30
  5. Step 5: Solve for x
    x = 226,567,456.30/16,889.09
  6. Step 6: Final answer
    x = 13,415.02

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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.