Home / 13,326.39-18,389.61-7,357.92

Finding the Fourth Proportional to 13,326.39, 18,389.61 and 7,357.92

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Solution

The fourth proportional to 13,326.39, 18,389.61 and 7,357.92 is: 10,153.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.39 : 18,389.61 = 7,357.92 : x
  2. Step 2: Convert to fraction form
    13,326.39/18,389.61 = 7,357.92/x
  3. Step 3: Cross multiply
    13,326.39x = 18,389.61 × 7,357.92
  4. Step 4: Simplify right side
    13,326.39x = 135,309,279.21
  5. Step 5: Solve for x
    x = 135,309,279.21/13,326.39
  6. Step 6: Final answer
    x = 10,153.48

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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.