Home / 12,349.60-18,519-3,584.32

Finding the Fourth Proportional to 12,349.60, 18,519 and 3,584.32

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Solution

The fourth proportional to 12,349.60, 18,519 and 3,584.32 is: 5,374.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,349.60 : 18,519 = 3,584.32 : x
  2. Step 2: Convert to fraction form
    12,349.60/18,519 = 3,584.32/x
  3. Step 3: Cross multiply
    12,349.60x = 18,519 × 3,584.32
  4. Step 4: Simplify right side
    12,349.60x = 66,378,022.08
  5. Step 5: Solve for x
    x = 66,378,022.08/12,349.60
  6. Step 6: Final answer
    x = 5,374.91

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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.