Home / 13,803.36-20,655.60-11,960.68

Finding the Fourth Proportional to 13,803.36, 20,655.60 and 11,960.68

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Solution

The fourth proportional to 13,803.36, 20,655.60 and 11,960.68 is: 17,898.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.36 : 20,655.60 = 11,960.68 : x
  2. Step 2: Convert to fraction form
    13,803.36/20,655.60 = 11,960.68/x
  3. Step 3: Cross multiply
    13,803.36x = 20,655.60 × 11,960.68
  4. Step 4: Simplify right side
    13,803.36x = 247,055,021.81
  5. Step 5: Solve for x
    x = 247,055,021.81/13,803.36
  6. Step 6: Final answer
    x = 17,898.18

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1.5x scale

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.