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Finding the Fourth Proportional to 11,777.56, 16,254.42 and 6,472.90

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Solution

The fourth proportional to 11,777.56, 16,254.42 and 6,472.90 is: 8,933.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,777.56 : 16,254.42 = 6,472.90 : x
  2. Step 2: Convert to fraction form
    11,777.56/16,254.42 = 6,472.90/x
  3. Step 3: Cross multiply
    11,777.56x = 16,254.42 × 6,472.90
  4. Step 4: Simplify right side
    11,777.56x = 105,213,235.22
  5. Step 5: Solve for x
    x = 105,213,235.22/11,777.56
  6. Step 6: Final answer
    x = 8,933.36

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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.