Home / 13,447.32-20,176.64-7,205.64

Finding the Fourth Proportional to 13,447.32, 20,176.64 and 7,205.64

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Solution

The fourth proportional to 13,447.32, 20,176.64 and 7,205.64 is: 10,811.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.32 : 20,176.64 = 7,205.64 : x
  2. Step 2: Convert to fraction form
    13,447.32/20,176.64 = 7,205.64/x
  3. Step 3: Cross multiply
    13,447.32x = 20,176.64 × 7,205.64
  4. Step 4: Simplify right side
    13,447.32x = 145,385,604.25
  5. Step 5: Solve for x
    x = 145,385,604.25/13,447.32
  6. Step 6: Final answer
    x = 10,811.49

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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.