Home / 14,511.64-20,025.88-8,138.84

Finding the Fourth Proportional to 14,511.64, 20,025.88 and 8,138.84

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Solution

The fourth proportional to 14,511.64, 20,025.88 and 8,138.84 is: 11,231.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,511.64 : 20,025.88 = 8,138.84 : x
  2. Step 2: Convert to fraction form
    14,511.64/20,025.88 = 8,138.84/x
  3. Step 3: Cross multiply
    14,511.64x = 20,025.88 × 8,138.84
  4. Step 4: Simplify right side
    14,511.64x = 162,987,433.18
  5. Step 5: Solve for x
    x = 162,987,433.18/14,511.64
  6. Step 6: Final answer
    x = 11,231.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.