Home / 13,630.87-20,434.15-4,863.84

Finding the Fourth Proportional to 13,630.87, 20,434.15 and 4,863.84

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Solution

The fourth proportional to 13,630.87, 20,434.15 and 4,863.84 is: 7,291.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.87 : 20,434.15 = 4,863.84 : x
  2. Step 2: Convert to fraction form
    13,630.87/20,434.15 = 4,863.84/x
  3. Step 3: Cross multiply
    13,630.87x = 20,434.15 × 4,863.84
  4. Step 4: Simplify right side
    13,630.87x = 99,388,436.14
  5. Step 5: Solve for x
    x = 99,388,436.14/13,630.87
  6. Step 6: Final answer
    x = 7,291.42

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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.