Home / 8,813.22-12,157.34-5,453.90

Finding the Fourth Proportional to 8,813.22, 12,157.34 and 5,453.90

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Solution

The fourth proportional to 8,813.22, 12,157.34 and 5,453.90 is: 7,523.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.22 : 12,157.34 = 5,453.90 : x
  2. Step 2: Convert to fraction form
    8,813.22/12,157.34 = 5,453.90/x
  3. Step 3: Cross multiply
    8,813.22x = 12,157.34 × 5,453.90
  4. Step 4: Simplify right side
    8,813.22x = 66,304,828.57
  5. Step 5: Solve for x
    x = 66,304,828.57/8,813.22
  6. Step 6: Final answer
    x = 7,523.34

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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.