Home / 9,154.18-12,628.12-5,791.33

Finding the Fourth Proportional to 9,154.18, 12,628.12 and 5,791.33

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Solution

The fourth proportional to 9,154.18, 12,628.12 and 5,791.33 is: 7,989.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,154.18 : 12,628.12 = 5,791.33 : x
  2. Step 2: Convert to fraction form
    9,154.18/12,628.12 = 5,791.33/x
  3. Step 3: Cross multiply
    9,154.18x = 12,628.12 × 5,791.33
  4. Step 4: Simplify right side
    9,154.18x = 73,133,610.20
  5. Step 5: Solve for x
    x = 73,133,610.20/9,154.18
  6. Step 6: Final answer
    x = 7,989.09

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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.