Home / 9,917.22-13,685.97-5,440.71

Finding the Fourth Proportional to 9,917.22, 13,685.97 and 5,440.71

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Solution

The fourth proportional to 9,917.22, 13,685.97 and 5,440.71 is: 7,508.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917.22 : 13,685.97 = 5,440.71 : x
  2. Step 2: Convert to fraction form
    9,917.22/13,685.97 = 5,440.71/x
  3. Step 3: Cross multiply
    9,917.22x = 13,685.97 × 5,440.71
  4. Step 4: Simplify right side
    9,917.22x = 74,461,393.84
  5. Step 5: Solve for x
    x = 74,461,393.84/9,917.22
  6. Step 6: Final answer
    x = 7,508.29

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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.