Home / 13,707.24-20,560.97-11,719.99

Finding the Fourth Proportional to 13,707.24, 20,560.97 and 11,719.99

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Solution

The fourth proportional to 13,707.24, 20,560.97 and 11,719.99 is: 17,580.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,707.24 : 20,560.97 = 11,719.99 : x
  2. Step 2: Convert to fraction form
    13,707.24/20,560.97 = 11,719.99/x
  3. Step 3: Cross multiply
    13,707.24x = 20,560.97 × 11,719.99
  4. Step 4: Simplify right side
    13,707.24x = 240,974,362.79
  5. Step 5: Solve for x
    x = 240,974,362.79/13,707.24
  6. Step 6: Final answer
    x = 17,580.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.