Home / 9,078.40-13,621.52-3,814.62

Finding the Fourth Proportional to 9,078.40, 13,621.52 and 3,814.62

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Solution

The fourth proportional to 9,078.40, 13,621.52 and 3,814.62 is: 5,723.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.40 : 13,621.52 = 3,814.62 : x
  2. Step 2: Convert to fraction form
    9,078.40/13,621.52 = 3,814.62/x
  3. Step 3: Cross multiply
    9,078.40x = 13,621.52 × 3,814.62
  4. Step 4: Simplify right side
    9,078.40x = 51,960,922.62
  5. Step 5: Solve for x
    x = 51,960,922.62/9,078.40
  6. Step 6: Final answer
    x = 5,723.58

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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.