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Finding the Fourth Proportional to 15,610.43, 21,542.42 and 8,804.54

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Solution

The fourth proportional to 15,610.43, 21,542.42 and 8,804.54 is: 12,150.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,610.43 : 21,542.42 = 8,804.54 : x
  2. Step 2: Convert to fraction form
    15,610.43/21,542.42 = 8,804.54/x
  3. Step 3: Cross multiply
    15,610.43x = 21,542.42 × 8,804.54
  4. Step 4: Simplify right side
    15,610.43x = 189,671,098.59
  5. Step 5: Solve for x
    x = 189,671,098.59/15,610.43
  6. Step 6: Final answer
    x = 12,150.28

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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.