Home / 9,092.21-12,548.20-5,557.78

Finding the Fourth Proportional to 9,092.21, 12,548.20 and 5,557.78

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Solution

The fourth proportional to 9,092.21, 12,548.20 and 5,557.78 is: 7,670.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,092.21 : 12,548.20 = 5,557.78 : x
  2. Step 2: Convert to fraction form
    9,092.21/12,548.20 = 5,557.78/x
  3. Step 3: Cross multiply
    9,092.21x = 12,548.20 × 5,557.78
  4. Step 4: Simplify right side
    9,092.21x = 69,740,135.00
  5. Step 5: Solve for x
    x = 69,740,135.00/9,092.21
  6. Step 6: Final answer
    x = 7,670.32

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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.