Home / 12,838.44-17,716.48-7,173.16

Finding the Fourth Proportional to 12,838.44, 17,716.48 and 7,173.16

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Solution

The fourth proportional to 12,838.44, 17,716.48 and 7,173.16 is: 9,898.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,838.44 : 17,716.48 = 7,173.16 : x
  2. Step 2: Convert to fraction form
    12,838.44/17,716.48 = 7,173.16/x
  3. Step 3: Cross multiply
    12,838.44x = 17,716.48 × 7,173.16
  4. Step 4: Simplify right side
    12,838.44x = 127,083,145.68
  5. Step 5: Solve for x
    x = 127,083,145.68/12,838.44
  6. Step 6: Final answer
    x = 9,898.64

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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.