Home / 8,906.40-13,365.36-5,012.64

Finding the Fourth Proportional to 8,906.40, 13,365.36 and 5,012.64

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Solution

The fourth proportional to 8,906.40, 13,365.36 and 5,012.64 is: 7,522.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.40 : 13,365.36 = 5,012.64 : x
  2. Step 2: Convert to fraction form
    8,906.40/13,365.36 = 5,012.64/x
  3. Step 3: Cross multiply
    8,906.40x = 13,365.36 × 5,012.64
  4. Step 4: Simplify right side
    8,906.40x = 66,995,738.15
  5. Step 5: Solve for x
    x = 66,995,738.15/8,906.40
  6. Step 6: Final answer
    x = 7,522.20

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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.