Home / 18,119.12-25,005.10-10,052.72

Finding the Fourth Proportional to 18,119.12, 25,005.10 and 10,052.72

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Solution

The fourth proportional to 18,119.12, 25,005.10 and 10,052.72 is: 13,873.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.12 : 25,005.10 = 10,052.72 : x
  2. Step 2: Convert to fraction form
    18,119.12/25,005.10 = 10,052.72/x
  3. Step 3: Cross multiply
    18,119.12x = 25,005.10 × 10,052.72
  4. Step 4: Simplify right side
    18,119.12x = 251,369,268.87
  5. Step 5: Solve for x
    x = 251,369,268.87/18,119.12
  6. Step 6: Final answer
    x = 13,873.15

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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.