Home / 13,195.77-18,210.18-7,227.43

Finding the Fourth Proportional to 13,195.77, 18,210.18 and 7,227.43

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Solution

The fourth proportional to 13,195.77, 18,210.18 and 7,227.43 is: 9,973.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.77 : 18,210.18 = 7,227.43 : x
  2. Step 2: Convert to fraction form
    13,195.77/18,210.18 = 7,227.43/x
  3. Step 3: Cross multiply
    13,195.77x = 18,210.18 × 7,227.43
  4. Step 4: Simplify right side
    13,195.77x = 131,612,801.24
  5. Step 5: Solve for x
    x = 131,612,801.24/13,195.77
  6. Step 6: Final answer
    x = 9,973.86

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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.