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Finding the Fourth Proportional to 11,203.60, 16,862.41 and 8,444.20

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Solution

The fourth proportional to 11,203.60, 16,862.41 and 8,444.20 is: 12,709.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,203.60 : 16,862.41 = 8,444.20 : x
  2. Step 2: Convert to fraction form
    11,203.60/16,862.41 = 8,444.20/x
  3. Step 3: Cross multiply
    11,203.60x = 16,862.41 × 8,444.20
  4. Step 4: Simplify right side
    11,203.60x = 142,389,562.52
  5. Step 5: Solve for x
    x = 142,389,562.52/11,203.60
  6. Step 6: Final answer
    x = 12,709.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.