Home / 13,966.20-20,948.94-4,105.68

Finding the Fourth Proportional to 13,966.20, 20,948.94 and 4,105.68

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Solution

The fourth proportional to 13,966.20, 20,948.94 and 4,105.68 is: 6,158.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,966.20 : 20,948.94 = 4,105.68 : x
  2. Step 2: Convert to fraction form
    13,966.20/20,948.94 = 4,105.68/x
  3. Step 3: Cross multiply
    13,966.20x = 20,948.94 × 4,105.68
  4. Step 4: Simplify right side
    13,966.20x = 86,009,643.98
  5. Step 5: Solve for x
    x = 86,009,643.98/13,966.20
  6. Step 6: Final answer
    x = 6,158.41

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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.