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Finding the Fourth Proportional to 18,164.78, 25,070.41 and 10,611.09

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Solution

The fourth proportional to 18,164.78, 25,070.41 and 10,611.09 is: 14,645.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164.78 : 25,070.41 = 10,611.09 : x
  2. Step 2: Convert to fraction form
    18,164.78/25,070.41 = 10,611.09/x
  3. Step 3: Cross multiply
    18,164.78x = 25,070.41 × 10,611.09
  4. Step 4: Simplify right side
    18,164.78x = 266,024,410.01
  5. Step 5: Solve for x
    x = 266,024,410.01/18,164.78
  6. Step 6: Final answer
    x = 14,645.06

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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.