Home / 12,103.08-18,185.16-11,611.02

Finding the Fourth Proportional to 12,103.08, 18,185.16 and 11,611.02

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Solution

The fourth proportional to 12,103.08, 18,185.16 and 11,611.02 is: 17,445.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,103.08 : 18,185.16 = 11,611.02 : x
  2. Step 2: Convert to fraction form
    12,103.08/18,185.16 = 11,611.02/x
  3. Step 3: Cross multiply
    12,103.08x = 18,185.16 × 11,611.02
  4. Step 4: Simplify right side
    12,103.08x = 211,148,256.46
  5. Step 5: Solve for x
    x = 211,148,256.46/12,103.08
  6. Step 6: Final answer
    x = 17,445.83

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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.