Home / 15,403.82-21,257.24-8,330.22

Finding the Fourth Proportional to 15,403.82, 21,257.24 and 8,330.22

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Solution

The fourth proportional to 15,403.82, 21,257.24 and 8,330.22 is: 11,495.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,403.82 : 21,257.24 = 8,330.22 : x
  2. Step 2: Convert to fraction form
    15,403.82/21,257.24 = 8,330.22/x
  3. Step 3: Cross multiply
    15,403.82x = 21,257.24 × 8,330.22
  4. Step 4: Simplify right side
    15,403.82x = 177,077,444.14
  5. Step 5: Solve for x
    x = 177,077,444.14/15,403.82
  6. Step 6: Final answer
    x = 11,495.69

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Similar ratio
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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.