Home / 8,228.43-11,332.44-7,109.01

Finding the Fourth Proportional to 8,228.43, 11,332.44 and 7,109.01

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Solution

The fourth proportional to 8,228.43, 11,332.44 and 7,109.01 is: 9,790.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228.43 : 11,332.44 = 7,109.01 : x
  2. Step 2: Convert to fraction form
    8,228.43/11,332.44 = 7,109.01/x
  3. Step 3: Cross multiply
    8,228.43x = 11,332.44 × 7,109.01
  4. Step 4: Simplify right side
    8,228.43x = 80,562,429.28
  5. Step 5: Solve for x
    x = 80,562,429.28/8,228.43
  6. Step 6: Final answer
    x = 9,790.74

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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.