Home / 9,180.36-12,662.28-5,645.52

Finding the Fourth Proportional to 9,180.36, 12,662.28 and 5,645.52

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Solution

The fourth proportional to 9,180.36, 12,662.28 and 5,645.52 is: 7,786.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.36 : 12,662.28 = 5,645.52 : x
  2. Step 2: Convert to fraction form
    9,180.36/12,662.28 = 5,645.52/x
  3. Step 3: Cross multiply
    9,180.36x = 12,662.28 × 5,645.52
  4. Step 4: Simplify right side
    9,180.36x = 71,485,154.99
  5. Step 5: Solve for x
    x = 71,485,154.99/9,180.36
  6. Step 6: Final answer
    x = 7,786.75

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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.