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Finding the Fourth Proportional to 8,644.19, 12,957.06 and 6,171.51

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Solution

The fourth proportional to 8,644.19, 12,957.06 and 6,171.51 is: 9,250.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644.19 : 12,957.06 = 6,171.51 : x
  2. Step 2: Convert to fraction form
    8,644.19/12,957.06 = 6,171.51/x
  3. Step 3: Cross multiply
    8,644.19x = 12,957.06 × 6,171.51
  4. Step 4: Simplify right side
    8,644.19x = 79,964,594.50
  5. Step 5: Solve for x
    x = 79,964,594.50/8,644.19
  6. Step 6: Final answer
    x = 9,250.68

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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.