Home / 18,174.84-25,081.57-9,998.79

Finding the Fourth Proportional to 18,174.84, 25,081.57 and 9,998.79

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Solution

The fourth proportional to 18,174.84, 25,081.57 and 9,998.79 is: 13,798.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,174.84 : 25,081.57 = 9,998.79 : x
  2. Step 2: Convert to fraction form
    18,174.84/25,081.57 = 9,998.79/x
  3. Step 3: Cross multiply
    18,174.84x = 25,081.57 × 9,998.79
  4. Step 4: Simplify right side
    18,174.84x = 250,785,225.89
  5. Step 5: Solve for x
    x = 250,785,225.89/18,174.84
  6. Step 6: Final answer
    x = 13,798.49

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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.