Home / 13,440.99-18,542.11-11,574.75

Finding the Fourth Proportional to 13,440.99, 18,542.11 and 11,574.75

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Solution

The fourth proportional to 13,440.99, 18,542.11 and 11,574.75 is: 15,967.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.99 : 18,542.11 = 11,574.75 : x
  2. Step 2: Convert to fraction form
    13,440.99/18,542.11 = 11,574.75/x
  3. Step 3: Cross multiply
    13,440.99x = 18,542.11 × 11,574.75
  4. Step 4: Simplify right side
    13,440.99x = 214,620,287.72
  5. Step 5: Solve for x
    x = 214,620,287.72/13,440.99
  6. Step 6: Final answer
    x = 15,967.60

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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.