Home / 9,639.72-14,449.80-3,800.40

Finding the Fourth Proportional to 9,639.72, 14,449.80 and 3,800.40

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Solution

The fourth proportional to 9,639.72, 14,449.80 and 3,800.40 is: 5,696.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,639.72 : 14,449.80 = 3,800.40 : x
  2. Step 2: Convert to fraction form
    9,639.72/14,449.80 = 3,800.40/x
  3. Step 3: Cross multiply
    9,639.72x = 14,449.80 × 3,800.40
  4. Step 4: Simplify right side
    9,639.72x = 54,915,019.92
  5. Step 5: Solve for x
    x = 54,915,019.92/9,639.72
  6. Step 6: Final answer
    x = 5,696.74

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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.