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Finding the Fourth Proportional to 8,569.60, 12,857.20 and 5,468.96

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Solution

The fourth proportional to 8,569.60, 12,857.20 and 5,468.96 is: 8,205.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,569.60 : 12,857.20 = 5,468.96 : x
  2. Step 2: Convert to fraction form
    8,569.60/12,857.20 = 5,468.96/x
  3. Step 3: Cross multiply
    8,569.60x = 12,857.20 × 5,468.96
  4. Step 4: Simplify right side
    8,569.60x = 70,315,512.51
  5. Step 5: Solve for x
    x = 70,315,512.51/8,569.60
  6. Step 6: Final answer
    x = 8,205.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.