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Finding the Fourth Proportional to 17,189.89, 25,808.78 and 8,875.90

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Solution

The fourth proportional to 17,189.89, 25,808.78 and 8,875.90 is: 13,326.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,189.89 : 25,808.78 = 8,875.90 : x
  2. Step 2: Convert to fraction form
    17,189.89/25,808.78 = 8,875.90/x
  3. Step 3: Cross multiply
    17,189.89x = 25,808.78 × 8,875.90
  4. Step 4: Simplify right side
    17,189.89x = 229,076,150.40
  5. Step 5: Solve for x
    x = 229,076,150.40/17,189.89
  6. Step 6: Final answer
    x = 13,326.21

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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.