Home / 13,538.88-20,309.60-11,095.36

Finding the Fourth Proportional to 13,538.88, 20,309.60 and 11,095.36

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Solution

The fourth proportional to 13,538.88, 20,309.60 and 11,095.36 is: 16,644.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.88 : 20,309.60 = 11,095.36 : x
  2. Step 2: Convert to fraction form
    13,538.88/20,309.60 = 11,095.36/x
  3. Step 3: Cross multiply
    13,538.88x = 20,309.60 × 11,095.36
  4. Step 4: Simplify right side
    13,538.88x = 225,342,323.46
  5. Step 5: Solve for x
    x = 225,342,323.46/13,538.88
  6. Step 6: Final answer
    x = 16,644.09

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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.