Home / 13,338.24-18,409.34-7,676.76

Finding the Fourth Proportional to 13,338.24, 18,409.34 and 7,676.76

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Solution

The fourth proportional to 13,338.24, 18,409.34 and 7,676.76 is: 10,595.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.24 : 18,409.34 = 7,676.76 : x
  2. Step 2: Convert to fraction form
    13,338.24/18,409.34 = 7,676.76/x
  3. Step 3: Cross multiply
    13,338.24x = 18,409.34 × 7,676.76
  4. Step 4: Simplify right side
    13,338.24x = 141,324,084.94
  5. Step 5: Solve for x
    x = 141,324,084.94/13,338.24
  6. Step 6: Final answer
    x = 10,595.41

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Half scale
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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.