Home / 13,207.19-18,225.92-7,618.19

Finding the Fourth Proportional to 13,207.19, 18,225.92 and 7,618.19

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Solution

The fourth proportional to 13,207.19, 18,225.92 and 7,618.19 is: 10,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.19 : 18,225.92 = 7,618.19 : x
  2. Step 2: Convert to fraction form
    13,207.19/18,225.92 = 7,618.19/x
  3. Step 3: Cross multiply
    13,207.19x = 18,225.92 × 7,618.19
  4. Step 4: Simplify right side
    13,207.19x = 138,848,521.48
  5. Step 5: Solve for x
    x = 138,848,521.48/13,207.19
  6. Step 6: Final answer
    x = 10,513.10

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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.