Home / 13,799.28-20,705.88-6,395.40

Finding the Fourth Proportional to 13,799.28, 20,705.88 and 6,395.40

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Solution

The fourth proportional to 13,799.28, 20,705.88 and 6,395.40 is: 9,596.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.28 : 20,705.88 = 6,395.40 : x
  2. Step 2: Convert to fraction form
    13,799.28/20,705.88 = 6,395.40/x
  3. Step 3: Cross multiply
    13,799.28x = 20,705.88 × 6,395.40
  4. Step 4: Simplify right side
    13,799.28x = 132,422,384.95
  5. Step 5: Solve for x
    x = 132,422,384.95/13,799.28
  6. Step 6: Final answer
    x = 9,596.33

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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.