Home / 18,805.24-28,210.28-6,319.88

Finding the Fourth Proportional to 18,805.24, 28,210.28 and 6,319.88

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Solution

The fourth proportional to 18,805.24, 28,210.28 and 6,319.88 is: 9,480.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805.24 : 28,210.28 = 6,319.88 : x
  2. Step 2: Convert to fraction form
    18,805.24/28,210.28 = 6,319.88/x
  3. Step 3: Cross multiply
    18,805.24x = 28,210.28 × 6,319.88
  4. Step 4: Simplify right side
    18,805.24x = 178,285,584.37
  5. Step 5: Solve for x
    x = 178,285,584.37/18,805.24
  6. Step 6: Final answer
    x = 9,480.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.