Home / 18,189.90-25,103.52-10,231.65

Finding the Fourth Proportional to 18,189.90, 25,103.52 and 10,231.65

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Solution

The fourth proportional to 18,189.90, 25,103.52 and 10,231.65 is: 14,120.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189.90 : 25,103.52 = 10,231.65 : x
  2. Step 2: Convert to fraction form
    18,189.90/25,103.52 = 10,231.65/x
  3. Step 3: Cross multiply
    18,189.90x = 25,103.52 × 10,231.65
  4. Step 4: Simplify right side
    18,189.90x = 256,850,430.41
  5. Step 5: Solve for x
    x = 256,850,430.41/18,189.90
  6. Step 6: Final answer
    x = 14,120.50

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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.