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Finding the Fourth Proportional to 8,660.19, 12,957.05 and 4,964.19

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Solution

The fourth proportional to 8,660.19, 12,957.05 and 4,964.19 is: 7,427.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.19 : 12,957.05 = 4,964.19 : x
  2. Step 2: Convert to fraction form
    8,660.19/12,957.05 = 4,964.19/x
  3. Step 3: Cross multiply
    8,660.19x = 12,957.05 × 4,964.19
  4. Step 4: Simplify right side
    8,660.19x = 64,321,233.22
  5. Step 5: Solve for x
    x = 64,321,233.22/8,660.19
  6. Step 6: Final answer
    x = 7,427.23

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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.