Home / 9,334.39-12,881.45-5,142.64

Finding the Fourth Proportional to 9,334.39, 12,881.45 and 5,142.64

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Solution

The fourth proportional to 9,334.39, 12,881.45 and 5,142.64 is: 7,096.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,334.39 : 12,881.45 = 5,142.64 : x
  2. Step 2: Convert to fraction form
    9,334.39/12,881.45 = 5,142.64/x
  3. Step 3: Cross multiply
    9,334.39x = 12,881.45 × 5,142.64
  4. Step 4: Simplify right side
    9,334.39x = 66,244,569.91
  5. Step 5: Solve for x
    x = 66,244,569.91/9,334.39
  6. Step 6: Final answer
    x = 7,096.83

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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.