Home / 11,257.29-16,805.57-9,781.47

Finding the Fourth Proportional to 11,257.29, 16,805.57 and 9,781.47

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Solution

The fourth proportional to 11,257.29, 16,805.57 and 9,781.47 is: 14,602.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,257.29 : 16,805.57 = 9,781.47 : x
  2. Step 2: Convert to fraction form
    11,257.29/16,805.57 = 9,781.47/x
  3. Step 3: Cross multiply
    11,257.29x = 16,805.57 × 9,781.47
  4. Step 4: Simplify right side
    11,257.29x = 164,383,129.88
  5. Step 5: Solve for x
    x = 164,383,129.88/11,257.29
  6. Step 6: Final answer
    x = 14,602.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.