Home / 18,189.30-25,099.20-10,231.35

Finding the Fourth Proportional to 18,189.30, 25,099.20 and 10,231.35

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Solution

The fourth proportional to 18,189.30, 25,099.20 and 10,231.35 is: 14,118.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189.30 : 25,099.20 = 10,231.35 : x
  2. Step 2: Convert to fraction form
    18,189.30/25,099.20 = 10,231.35/x
  3. Step 3: Cross multiply
    18,189.30x = 25,099.20 × 10,231.35
  4. Step 4: Simplify right side
    18,189.30x = 256,798,699.92
  5. Step 5: Solve for x
    x = 256,798,699.92/18,189.30
  6. Step 6: Final answer
    x = 14,118.12

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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.