Home / 18,832.12-25,980.91-10,872.81

Finding the Fourth Proportional to 18,832.12, 25,980.91 and 10,872.81

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Solution

The fourth proportional to 18,832.12, 25,980.91 and 10,872.81 is: 15,000.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.12 : 25,980.91 = 10,872.81 : x
  2. Step 2: Convert to fraction form
    18,832.12/25,980.91 = 10,872.81/x
  3. Step 3: Cross multiply
    18,832.12x = 25,980.91 × 10,872.81
  4. Step 4: Simplify right side
    18,832.12x = 282,485,498.06
  5. Step 5: Solve for x
    x = 282,485,498.06/18,832.12
  6. Step 6: Final answer
    x = 15,000.20

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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.