Home / 15,174.19-20,940.48-8,460.25

Finding the Fourth Proportional to 15,174.19, 20,940.48 and 8,460.25

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Solution

The fourth proportional to 15,174.19, 20,940.48 and 8,460.25 is: 11,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.19 : 20,940.48 = 8,460.25 : x
  2. Step 2: Convert to fraction form
    15,174.19/20,940.48 = 8,460.25/x
  3. Step 3: Cross multiply
    15,174.19x = 20,940.48 × 8,460.25
  4. Step 4: Simplify right side
    15,174.19x = 177,161,695.92
  5. Step 5: Solve for x
    x = 177,161,695.92/15,174.19
  6. Step 6: Final answer
    x = 11,675.20

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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.