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Finding the Fourth Proportional to 8,644.55, 11,927.80 and 5,108.36

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Solution

The fourth proportional to 8,644.55, 11,927.80 and 5,108.36 is: 7,048.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644.55 : 11,927.80 = 5,108.36 : x
  2. Step 2: Convert to fraction form
    8,644.55/11,927.80 = 5,108.36/x
  3. Step 3: Cross multiply
    8,644.55x = 11,927.80 × 5,108.36
  4. Step 4: Simplify right side
    8,644.55x = 60,931,496.41
  5. Step 5: Solve for x
    x = 60,931,496.41/8,644.55
  6. Step 6: Final answer
    x = 7,048.54

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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.