Home / 13,619.16-20,438.46-4,854.15

Finding the Fourth Proportional to 13,619.16, 20,438.46 and 4,854.15

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Solution

The fourth proportional to 13,619.16, 20,438.46 and 4,854.15 is: 7,284.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.16 : 20,438.46 = 4,854.15 : x
  2. Step 2: Convert to fraction form
    13,619.16/20,438.46 = 4,854.15/x
  3. Step 3: Cross multiply
    13,619.16x = 20,438.46 × 4,854.15
  4. Step 4: Simplify right side
    13,619.16x = 99,211,350.61
  5. Step 5: Solve for x
    x = 99,211,350.61/13,619.16
  6. Step 6: Final answer
    x = 7,284.69

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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.