Home / 13,340.92-18,396.64-11,458.73

Finding the Fourth Proportional to 13,340.92, 18,396.64 and 11,458.73

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Solution

The fourth proportional to 13,340.92, 18,396.64 and 11,458.73 is: 15,801.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.92 : 18,396.64 = 11,458.73 : x
  2. Step 2: Convert to fraction form
    13,340.92/18,396.64 = 11,458.73/x
  3. Step 3: Cross multiply
    13,340.92x = 18,396.64 × 11,458.73
  4. Step 4: Simplify right side
    13,340.92x = 210,802,130.67
  5. Step 5: Solve for x
    x = 210,802,130.67/13,340.92
  6. Step 6: Final answer
    x = 15,801.17

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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.