Home / 18,711.19-25,820.62-10,213.09

Finding the Fourth Proportional to 18,711.19, 25,820.62 and 10,213.09

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Solution

The fourth proportional to 18,711.19, 25,820.62 and 10,213.09 is: 14,093.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.19 : 25,820.62 = 10,213.09 : x
  2. Step 2: Convert to fraction form
    18,711.19/25,820.62 = 10,213.09/x
  3. Step 3: Cross multiply
    18,711.19x = 25,820.62 × 10,213.09
  4. Step 4: Simplify right side
    18,711.19x = 263,708,315.92
  5. Step 5: Solve for x
    x = 263,708,315.92/18,711.19
  6. Step 6: Final answer
    x = 14,093.62

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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.