Home / 9,135.59-13,704.81-3,870.61

Finding the Fourth Proportional to 9,135.59, 13,704.81 and 3,870.61

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Solution

The fourth proportional to 9,135.59, 13,704.81 and 3,870.61 is: 5,806.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.59 : 13,704.81 = 3,870.61 : x
  2. Step 2: Convert to fraction form
    9,135.59/13,704.81 = 3,870.61/x
  3. Step 3: Cross multiply
    9,135.59x = 13,704.81 × 3,870.61
  4. Step 4: Simplify right side
    9,135.59x = 53,045,940.37
  5. Step 5: Solve for x
    x = 53,045,940.37/9,135.59
  6. Step 6: Final answer
    x = 5,806.52

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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.