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Finding the Fourth Proportional to 11,955.60, 17,898.33 and 8,385.33

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Solution

The fourth proportional to 11,955.60, 17,898.33 and 8,385.33 is: 12,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,955.60 : 17,898.33 = 8,385.33 : x
  2. Step 2: Convert to fraction form
    11,955.60/17,898.33 = 8,385.33/x
  3. Step 3: Cross multiply
    11,955.60x = 17,898.33 × 8,385.33
  4. Step 4: Simplify right side
    11,955.60x = 150,083,403.50
  5. Step 5: Solve for x
    x = 150,083,403.50/11,955.60
  6. Step 6: Final answer
    x = 12,553.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.