Home / 13,259.13-18,297.78-7,290.75

Finding the Fourth Proportional to 13,259.13, 18,297.78 and 7,290.75

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Solution

The fourth proportional to 13,259.13, 18,297.78 and 7,290.75 is: 10,061.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.13 : 18,297.78 = 7,290.75 : x
  2. Step 2: Convert to fraction form
    13,259.13/18,297.78 = 7,290.75/x
  3. Step 3: Cross multiply
    13,259.13x = 18,297.78 × 7,290.75
  4. Step 4: Simplify right side
    13,259.13x = 133,404,539.54
  5. Step 5: Solve for x
    x = 133,404,539.54/13,259.13
  6. Step 6: Final answer
    x = 10,061.33

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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.