Home / 13,104.99-18,103.26-11,688.22

Finding the Fourth Proportional to 13,104.99, 18,103.26 and 11,688.22

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Solution

The fourth proportional to 13,104.99, 18,103.26 and 11,688.22 is: 16,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.99 : 18,103.26 = 11,688.22 : x
  2. Step 2: Convert to fraction form
    13,104.99/18,103.26 = 11,688.22/x
  3. Step 3: Cross multiply
    13,104.99x = 18,103.26 × 11,688.22
  4. Step 4: Simplify right side
    13,104.99x = 211,594,885.60
  5. Step 5: Solve for x
    x = 211,594,885.60/13,104.99
  6. Step 6: Final answer
    x = 16,146.13

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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.