Home / 13,351.92-18,424.08-7,383.62

Finding the Fourth Proportional to 13,351.92, 18,424.08 and 7,383.62

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Solution

The fourth proportional to 13,351.92, 18,424.08 and 7,383.62 is: 10,188.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.92 : 18,424.08 = 7,383.62 : x
  2. Step 2: Convert to fraction form
    13,351.92/18,424.08 = 7,383.62/x
  3. Step 3: Cross multiply
    13,351.92x = 18,424.08 × 7,383.62
  4. Step 4: Simplify right side
    13,351.92x = 136,036,405.57
  5. Step 5: Solve for x
    x = 136,036,405.57/13,351.92
  6. Step 6: Final answer
    x = 10,188.53

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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.