Home / 11,172.44-15,416.80-6,696.08

Finding the Fourth Proportional to 11,172.44, 15,416.80 and 6,696.08

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Solution

The fourth proportional to 11,172.44, 15,416.80 and 6,696.08 is: 9,239.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.44 : 15,416.80 = 6,696.08 : x
  2. Step 2: Convert to fraction form
    11,172.44/15,416.80 = 6,696.08/x
  3. Step 3: Cross multiply
    11,172.44x = 15,416.80 × 6,696.08
  4. Step 4: Simplify right side
    11,172.44x = 103,232,126.14
  5. Step 5: Solve for x
    x = 103,232,126.14/11,172.44
  6. Step 6: Final answer
    x = 9,239.89

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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.