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Finding the Fourth Proportional to 8,000.88, 11,047.19 and 5,170.03

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Solution

The fourth proportional to 8,000.88, 11,047.19 and 5,170.03 is: 7,138.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,000.88 : 11,047.19 = 5,170.03 : x
  2. Step 2: Convert to fraction form
    8,000.88/11,047.19 = 5,170.03/x
  3. Step 3: Cross multiply
    8,000.88x = 11,047.19 × 5,170.03
  4. Step 4: Simplify right side
    8,000.88x = 57,114,250.25
  5. Step 5: Solve for x
    x = 57,114,250.25/8,000.88
  6. Step 6: Final answer
    x = 7,138.50

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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.