Home / 9,057.48-12,497.13-5,278.38

Finding the Fourth Proportional to 9,057.48, 12,497.13 and 5,278.38

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Solution

The fourth proportional to 9,057.48, 12,497.13 and 5,278.38 is: 7,282.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,057.48 : 12,497.13 = 5,278.38 : x
  2. Step 2: Convert to fraction form
    9,057.48/12,497.13 = 5,278.38/x
  3. Step 3: Cross multiply
    9,057.48x = 12,497.13 × 5,278.38
  4. Step 4: Simplify right side
    9,057.48x = 65,964,601.05
  5. Step 5: Solve for x
    x = 65,964,601.05/9,057.48
  6. Step 6: Final answer
    x = 7,282.89

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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.