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Finding the Fourth Proportional to 8,333.34, 11,505 and 5,193.78

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Solution

The fourth proportional to 8,333.34, 11,505 and 5,193.78 is: 7,170.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,333.34 : 11,505 = 5,193.78 : x
  2. Step 2: Convert to fraction form
    8,333.34/11,505 = 5,193.78/x
  3. Step 3: Cross multiply
    8,333.34x = 11,505 × 5,193.78
  4. Step 4: Simplify right side
    8,333.34x = 59,754,438.90
  5. Step 5: Solve for x
    x = 59,754,438.90/8,333.34
  6. Step 6: Final answer
    x = 7,170.53

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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.