Home / 18,522.26-25,560.72-10,138.76

Finding the Fourth Proportional to 18,522.26, 25,560.72 and 10,138.76

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Solution

The fourth proportional to 18,522.26, 25,560.72 and 10,138.76 is: 13,991.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,522.26 : 25,560.72 = 10,138.76 : x
  2. Step 2: Convert to fraction form
    18,522.26/25,560.72 = 10,138.76/x
  3. Step 3: Cross multiply
    18,522.26x = 25,560.72 × 10,138.76
  4. Step 4: Simplify right side
    18,522.26x = 259,154,005.51
  5. Step 5: Solve for x
    x = 259,154,005.51/18,522.26
  6. Step 6: Final answer
    x = 13,991.49

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Half 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.