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Finding the Fourth Proportional to 8,802.56, 12,147.09 and 4,822.91

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Solution

The fourth proportional to 8,802.56, 12,147.09 and 4,822.91 is: 6,655.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,802.56 : 12,147.09 = 4,822.91 : x
  2. Step 2: Convert to fraction form
    8,802.56/12,147.09 = 4,822.91/x
  3. Step 3: Cross multiply
    8,802.56x = 12,147.09 × 4,822.91
  4. Step 4: Simplify right side
    8,802.56x = 58,584,321.83
  5. Step 5: Solve for x
    x = 58,584,321.83/8,802.56
  6. Step 6: Final answer
    x = 6,655.37

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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.