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Finding the Fourth Proportional to 18,122.36, 25,010 and 10,165.08

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Solution

The fourth proportional to 18,122.36, 25,010 and 10,165.08 is: 14,028.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.36 : 25,010 = 10,165.08 : x
  2. Step 2: Convert to fraction form
    18,122.36/25,010 = 10,165.08/x
  3. Step 3: Cross multiply
    18,122.36x = 25,010 × 10,165.08
  4. Step 4: Simplify right side
    18,122.36x = 254,228,650.80
  5. Step 5: Solve for x
    x = 254,228,650.80/18,122.36
  6. Step 6: Final answer
    x = 14,028.45

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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.