Home / 15,761.72-21,758.36-11,227.32

Finding the Fourth Proportional to 15,761.72, 21,758.36 and 11,227.32

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Solution

The fourth proportional to 15,761.72, 21,758.36 and 11,227.32 is: 15,498.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,761.72 : 21,758.36 = 11,227.32 : x
  2. Step 2: Convert to fraction form
    15,761.72/21,758.36 = 11,227.32/x
  3. Step 3: Cross multiply
    15,761.72x = 21,758.36 × 11,227.32
  4. Step 4: Simplify right side
    15,761.72x = 244,288,070.40
  5. Step 5: Solve for x
    x = 244,288,070.40/15,761.72
  6. Step 6: Final answer
    x = 15,498.82

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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.