Home / 10,874.19-15,018.62-7,331.25

Finding the Fourth Proportional to 10,874.19, 15,018.62 and 7,331.25

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Solution

The fourth proportional to 10,874.19, 15,018.62 and 7,331.25 is: 10,125.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,874.19 : 15,018.62 = 7,331.25 : x
  2. Step 2: Convert to fraction form
    10,874.19/15,018.62 = 7,331.25/x
  3. Step 3: Cross multiply
    10,874.19x = 15,018.62 × 7,331.25
  4. Step 4: Simplify right side
    10,874.19x = 110,105,221.22
  5. Step 5: Solve for x
    x = 110,105,221.22/10,874.19
  6. Step 6: Final answer
    x = 10,125.37

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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.