Home / 16,440.72-22,668.40-11,409.24

Finding the Fourth Proportional to 16,440.72, 22,668.40 and 11,409.24

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Solution

The fourth proportional to 16,440.72, 22,668.40 and 11,409.24 is: 15,731.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,440.72 : 22,668.40 = 11,409.24 : x
  2. Step 2: Convert to fraction form
    16,440.72/22,668.40 = 11,409.24/x
  3. Step 3: Cross multiply
    16,440.72x = 22,668.40 × 11,409.24
  4. Step 4: Simplify right side
    16,440.72x = 258,629,216.02
  5. Step 5: Solve for x
    x = 258,629,216.02/16,440.72
  6. Step 6: Final answer
    x = 15,731.02

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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.