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Finding the Fourth Proportional to 8,964, 12,366.94 and 5,559.42

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Solution

The fourth proportional to 8,964, 12,366.94 and 5,559.42 is: 7,669.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964 : 12,366.94 = 5,559.42 : x
  2. Step 2: Convert to fraction form
    8,964/12,366.94 = 5,559.42/x
  3. Step 3: Cross multiply
    8,964x = 12,366.94 × 5,559.42
  4. Step 4: Simplify right side
    8,964x = 68,753,013.57
  5. Step 5: Solve for x
    x = 68,753,013.57/8,964
  6. Step 6: Final answer
    x = 7,669.90

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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.