Home / 12,427.36-17,150.07-7,122.94

Finding the Fourth Proportional to 12,427.36, 17,150.07 and 7,122.94

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Solution

The fourth proportional to 12,427.36, 17,150.07 and 7,122.94 is: 9,829.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.36 : 17,150.07 = 7,122.94 : x
  2. Step 2: Convert to fraction form
    12,427.36/17,150.07 = 7,122.94/x
  3. Step 3: Cross multiply
    12,427.36x = 17,150.07 × 7,122.94
  4. Step 4: Simplify right side
    12,427.36x = 122,158,919.61
  5. Step 5: Solve for x
    x = 122,158,919.61/12,427.36
  6. Step 6: Final answer
    x = 9,829.84

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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.