Home / 18,995.25-28,493.28-6,515.22

Finding the Fourth Proportional to 18,995.25, 28,493.28 and 6,515.22

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Solution

The fourth proportional to 18,995.25, 28,493.28 and 6,515.22 is: 9,772.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,995.25 : 28,493.28 = 6,515.22 : x
  2. Step 2: Convert to fraction form
    18,995.25/28,493.28 = 6,515.22/x
  3. Step 3: Cross multiply
    18,995.25x = 28,493.28 × 6,515.22
  4. Step 4: Simplify right side
    18,995.25x = 185,639,987.72
  5. Step 5: Solve for x
    x = 185,639,987.72/18,995.25
  6. Step 6: Final answer
    x = 9,772.97

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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.