Home / 14,772.32-20,378.77-9,993.95

Finding the Fourth Proportional to 14,772.32, 20,378.77 and 9,993.95

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Solution

The fourth proportional to 14,772.32, 20,378.77 and 9,993.95 is: 13,786.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.32 : 20,378.77 = 9,993.95 : x
  2. Step 2: Convert to fraction form
    14,772.32/20,378.77 = 9,993.95/x
  3. Step 3: Cross multiply
    14,772.32x = 20,378.77 × 9,993.95
  4. Step 4: Simplify right side
    14,772.32x = 203,664,414.20
  5. Step 5: Solve for x
    x = 203,664,414.20/14,772.32
  6. Step 6: Final answer
    x = 13,786.89

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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.