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Finding the Fourth Proportional to 8,587.01, 12,880.49 and 5,664.60

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Solution

The fourth proportional to 8,587.01, 12,880.49 and 5,664.60 is: 8,496.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.01 : 12,880.49 = 5,664.60 : x
  2. Step 2: Convert to fraction form
    8,587.01/12,880.49 = 5,664.60/x
  3. Step 3: Cross multiply
    8,587.01x = 12,880.49 × 5,664.60
  4. Step 4: Simplify right side
    8,587.01x = 72,962,795.33
  5. Step 5: Solve for x
    x = 72,962,795.33/8,587.01
  6. Step 6: Final answer
    x = 8,496.88

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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.