Home / 18,121.62-25,009.08-10,164.35

Finding the Fourth Proportional to 18,121.62, 25,009.08 and 10,164.35

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Solution

The fourth proportional to 18,121.62, 25,009.08 and 10,164.35 is: 14,027.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.62 : 25,009.08 = 10,164.35 : x
  2. Step 2: Convert to fraction form
    18,121.62/25,009.08 = 10,164.35/x
  3. Step 3: Cross multiply
    18,121.62x = 25,009.08 × 10,164.35
  4. Step 4: Simplify right side
    18,121.62x = 254,201,066.70
  5. Step 5: Solve for x
    x = 254,201,066.70/18,121.62
  6. Step 6: Final answer
    x = 14,027.51

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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.