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Finding the Fourth Proportional to 15,025.33, 20,733.37 and 8,309.89

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Solution

The fourth proportional to 15,025.33, 20,733.37 and 8,309.89 is: 11,466.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,025.33 : 20,733.37 = 8,309.89 : x
  2. Step 2: Convert to fraction form
    15,025.33/20,733.37 = 8,309.89/x
  3. Step 3: Cross multiply
    15,025.33x = 20,733.37 × 8,309.89
  4. Step 4: Simplify right side
    15,025.33x = 172,292,024.03
  5. Step 5: Solve for x
    x = 172,292,024.03/15,025.33
  6. Step 6: Final answer
    x = 11,466.77

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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.