Home / 13,305.09-18,360.63-7,336.76

Finding the Fourth Proportional to 13,305.09, 18,360.63 and 7,336.76

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Solution

The fourth proportional to 13,305.09, 18,360.63 and 7,336.76 is: 10,124.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.09 : 18,360.63 = 7,336.76 : x
  2. Step 2: Convert to fraction form
    13,305.09/18,360.63 = 7,336.76/x
  3. Step 3: Cross multiply
    13,305.09x = 18,360.63 × 7,336.76
  4. Step 4: Simplify right side
    13,305.09x = 134,707,474.93
  5. Step 5: Solve for x
    x = 134,707,474.93/13,305.09
  6. Step 6: Final answer
    x = 10,124.51

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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.