Home / 11,842.24-16,334.40-7,121.56

Finding the Fourth Proportional to 11,842.24, 16,334.40 and 7,121.56

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Solution

The fourth proportional to 11,842.24, 16,334.40 and 7,121.56 is: 9,823.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,842.24 : 16,334.40 = 7,121.56 : x
  2. Step 2: Convert to fraction form
    11,842.24/16,334.40 = 7,121.56/x
  3. Step 3: Cross multiply
    11,842.24x = 16,334.40 × 7,121.56
  4. Step 4: Simplify right side
    11,842.24x = 116,326,409.66
  5. Step 5: Solve for x
    x = 116,326,409.66/11,842.24
  6. Step 6: Final answer
    x = 9,823.01

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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.