Home / 15,025.73-20,742.75-9,998.33

Finding the Fourth Proportional to 15,025.73, 20,742.75 and 9,998.33

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Solution

The fourth proportional to 15,025.73, 20,742.75 and 9,998.33 is: 13,802.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,025.73 : 20,742.75 = 9,998.33 : x
  2. Step 2: Convert to fraction form
    15,025.73/20,742.75 = 9,998.33/x
  3. Step 3: Cross multiply
    15,025.73x = 20,742.75 × 9,998.33
  4. Step 4: Simplify right side
    15,025.73x = 207,392,755.89
  5. Step 5: Solve for x
    x = 207,392,755.89/15,025.73
  6. Step 6: Final answer
    x = 13,802.51

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Half scale
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Double scale
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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.