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Finding the Fourth Proportional to 8,817.76, 12,163.44 and 5,985.28

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Solution

The fourth proportional to 8,817.76, 12,163.44 and 5,985.28 is: 8,256.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817.76 : 12,163.44 = 5,985.28 : x
  2. Step 2: Convert to fraction form
    8,817.76/12,163.44 = 5,985.28/x
  3. Step 3: Cross multiply
    8,817.76x = 12,163.44 × 5,985.28
  4. Step 4: Simplify right side
    8,817.76x = 72,801,594.16
  5. Step 5: Solve for x
    x = 72,801,594.16/8,817.76
  6. Step 6: Final answer
    x = 8,256.25

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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.