Home / 15,002.22-20,701.29-8,287.44

Finding the Fourth Proportional to 15,002.22, 20,701.29 and 8,287.44

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Solution

The fourth proportional to 15,002.22, 20,701.29 and 8,287.44 is: 11,435.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.22 : 20,701.29 = 8,287.44 : x
  2. Step 2: Convert to fraction form
    15,002.22/20,701.29 = 8,287.44/x
  3. Step 3: Cross multiply
    15,002.22x = 20,701.29 × 8,287.44
  4. Step 4: Simplify right side
    15,002.22x = 171,560,657.36
  5. Step 5: Solve for x
    x = 171,560,657.36/15,002.22
  6. Step 6: Final answer
    x = 11,435.68

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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.