Home / 11,340.66-15,645.06-6,622.86

Finding the Fourth Proportional to 11,340.66, 15,645.06 and 6,622.86

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Solution

The fourth proportional to 11,340.66, 15,645.06 and 6,622.86 is: 9,136.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.66 : 15,645.06 = 6,622.86 : x
  2. Step 2: Convert to fraction form
    11,340.66/15,645.06 = 6,622.86/x
  3. Step 3: Cross multiply
    11,340.66x = 15,645.06 × 6,622.86
  4. Step 4: Simplify right side
    11,340.66x = 103,615,042.07
  5. Step 5: Solve for x
    x = 103,615,042.07/11,340.66
  6. Step 6: Final answer
    x = 9,136.60

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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.