Home / 12,639.14-18,964.17-6,065.40

Finding the Fourth Proportional to 12,639.14, 18,964.17 and 6,065.40

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Solution

The fourth proportional to 12,639.14, 18,964.17 and 6,065.40 is: 9,100.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639.14 : 18,964.17 = 6,065.40 : x
  2. Step 2: Convert to fraction form
    12,639.14/18,964.17 = 6,065.40/x
  3. Step 3: Cross multiply
    12,639.14x = 18,964.17 × 6,065.40
  4. Step 4: Simplify right side
    12,639.14x = 115,025,276.72
  5. Step 5: Solve for x
    x = 115,025,276.72/12,639.14
  6. Step 6: Final answer
    x = 9,100.72

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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.