Home / 9,221.88-12,727.62-5,445.45

Finding the Fourth Proportional to 9,221.88, 12,727.62 and 5,445.45

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Solution

The fourth proportional to 9,221.88, 12,727.62 and 5,445.45 is: 7,515.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.88 : 12,727.62 = 5,445.45 : x
  2. Step 2: Convert to fraction form
    9,221.88/12,727.62 = 5,445.45/x
  3. Step 3: Cross multiply
    9,221.88x = 12,727.62 × 5,445.45
  4. Step 4: Simplify right side
    9,221.88x = 69,307,618.33
  5. Step 5: Solve for x
    x = 69,307,618.33/9,221.88
  6. Step 6: Final answer
    x = 7,515.56

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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.