Home / 14,635.09-20,196.45-7,920.73

Finding the Fourth Proportional to 14,635.09, 20,196.45 and 7,920.73

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Solution

The fourth proportional to 14,635.09, 20,196.45 and 7,920.73 is: 10,930.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,635.09 : 20,196.45 = 7,920.73 : x
  2. Step 2: Convert to fraction form
    14,635.09/20,196.45 = 7,920.73/x
  3. Step 3: Cross multiply
    14,635.09x = 20,196.45 × 7,920.73
  4. Step 4: Simplify right side
    14,635.09x = 159,970,486.82
  5. Step 5: Solve for x
    x = 159,970,486.82/14,635.09
  6. Step 6: Final answer
    x = 10,930.62

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Double scale
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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.