Home / 13,189.51-18,202.56-7,522.96

Finding the Fourth Proportional to 13,189.51, 18,202.56 and 7,522.96

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Solution

The fourth proportional to 13,189.51, 18,202.56 and 7,522.96 is: 10,382.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.51 : 18,202.56 = 7,522.96 : x
  2. Step 2: Convert to fraction form
    13,189.51/18,202.56 = 7,522.96/x
  3. Step 3: Cross multiply
    13,189.51x = 18,202.56 × 7,522.96
  4. Step 4: Simplify right side
    13,189.51x = 136,937,154.66
  5. Step 5: Solve for x
    x = 136,937,154.66/13,189.51
  6. Step 6: Final answer
    x = 10,382.28

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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.