Home / 15,025.50-20,736.15-8,401.50

Finding the Fourth Proportional to 15,025.50, 20,736.15 and 8,401.50

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Solution

The fourth proportional to 15,025.50, 20,736.15 and 8,401.50 is: 11,594.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,025.50 : 20,736.15 = 8,401.50 : x
  2. Step 2: Convert to fraction form
    15,025.50/20,736.15 = 8,401.50/x
  3. Step 3: Cross multiply
    15,025.50x = 20,736.15 × 8,401.50
  4. Step 4: Simplify right side
    15,025.50x = 174,214,764.23
  5. Step 5: Solve for x
    x = 174,214,764.23/15,025.50
  6. Step 6: Final answer
    x = 11,594.61

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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.