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Finding the Fourth Proportional to 8,648.74, 11,936.16 and 5,293.79

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Solution

The fourth proportional to 8,648.74, 11,936.16 and 5,293.79 is: 7,305.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,648.74 : 11,936.16 = 5,293.79 : x
  2. Step 2: Convert to fraction form
    8,648.74/11,936.16 = 5,293.79/x
  3. Step 3: Cross multiply
    8,648.74x = 11,936.16 × 5,293.79
  4. Step 4: Simplify right side
    8,648.74x = 63,187,509.53
  5. Step 5: Solve for x
    x = 63,187,509.53/8,648.74
  6. Step 6: Final answer
    x = 7,305.98

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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.