Home / 12,400.24-17,112.36-6,811.60

Finding the Fourth Proportional to 12,400.24, 17,112.36 and 6,811.60

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Solution

The fourth proportional to 12,400.24, 17,112.36 and 6,811.60 is: 9,400.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.24 : 17,112.36 = 6,811.60 : x
  2. Step 2: Convert to fraction form
    12,400.24/17,112.36 = 6,811.60/x
  3. Step 3: Cross multiply
    12,400.24x = 17,112.36 × 6,811.60
  4. Step 4: Simplify right side
    12,400.24x = 116,562,551.38
  5. Step 5: Solve for x
    x = 116,562,551.38/12,400.24
  6. Step 6: Final answer
    x = 9,400.02

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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.