Home / 13,684.80-20,513.52-6,286.08

Finding the Fourth Proportional to 13,684.80, 20,513.52 and 6,286.08

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Solution

The fourth proportional to 13,684.80, 20,513.52 and 6,286.08 is: 9,422.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684.80 : 20,513.52 = 6,286.08 : x
  2. Step 2: Convert to fraction form
    13,684.80/20,513.52 = 6,286.08/x
  3. Step 3: Cross multiply
    13,684.80x = 20,513.52 × 6,286.08
  4. Step 4: Simplify right side
    13,684.80x = 128,949,627.80
  5. Step 5: Solve for x
    x = 128,949,627.80/13,684.80
  6. Step 6: Final answer
    x = 9,422.84

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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.