Home / 11,289.25-15,579.71-6,812.92

Finding the Fourth Proportional to 11,289.25, 15,579.71 and 6,812.92

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Solution

The fourth proportional to 11,289.25, 15,579.71 and 6,812.92 is: 9,402.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,289.25 : 15,579.71 = 6,812.92 : x
  2. Step 2: Convert to fraction form
    11,289.25/15,579.71 = 6,812.92/x
  3. Step 3: Cross multiply
    11,289.25x = 15,579.71 × 6,812.92
  4. Step 4: Simplify right side
    11,289.25x = 106,143,317.85
  5. Step 5: Solve for x
    x = 106,143,317.85/11,289.25
  6. Step 6: Final answer
    x = 9,402.16

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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.