Home / 11,202.36-15,442.68-7,168.74

Finding the Fourth Proportional to 11,202.36, 15,442.68 and 7,168.74

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Solution

The fourth proportional to 11,202.36, 15,442.68 and 7,168.74 is: 9,882.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,202.36 : 15,442.68 = 7,168.74 : x
  2. Step 2: Convert to fraction form
    11,202.36/15,442.68 = 7,168.74/x
  3. Step 3: Cross multiply
    11,202.36x = 15,442.68 × 7,168.74
  4. Step 4: Simplify right side
    11,202.36x = 110,704,557.82
  5. Step 5: Solve for x
    x = 110,704,557.82/11,202.36
  6. Step 6: Final answer
    x = 9,882.25

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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.