Home / 18,143.48-27,215.34-4,997.24

Finding the Fourth Proportional to 18,143.48, 27,215.34 and 4,997.24

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Solution

The fourth proportional to 18,143.48, 27,215.34 and 4,997.24 is: 7,495.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.48 : 27,215.34 = 4,997.24 : x
  2. Step 2: Convert to fraction form
    18,143.48/27,215.34 = 4,997.24/x
  3. Step 3: Cross multiply
    18,143.48x = 27,215.34 × 4,997.24
  4. Step 4: Simplify right side
    18,143.48x = 136,001,585.66
  5. Step 5: Solve for x
    x = 136,001,585.66/18,143.48
  6. Step 6: Final answer
    x = 7,495.89

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.