Home / 18,832.10-25,987.64-12,118.01

Finding the Fourth Proportional to 18,832.10, 25,987.64 and 12,118.01

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Solution

The fourth proportional to 18,832.10, 25,987.64 and 12,118.01 is: 16,722.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.10 : 25,987.64 = 12,118.01 : x
  2. Step 2: Convert to fraction form
    18,832.10/25,987.64 = 12,118.01/x
  3. Step 3: Cross multiply
    18,832.10x = 25,987.64 × 12,118.01
  4. Step 4: Simplify right side
    18,832.10x = 314,918,290.87
  5. Step 5: Solve for x
    x = 314,918,290.87/18,832.10
  6. Step 6: Final answer
    x = 16,722.42

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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.