Home / 18,745.08-28,117.80-11,396.76

Finding the Fourth Proportional to 18,745.08, 28,117.80 and 11,396.76

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Solution

The fourth proportional to 18,745.08, 28,117.80 and 11,396.76 is: 17,095.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.08 : 28,117.80 = 11,396.76 : x
  2. Step 2: Convert to fraction form
    18,745.08/28,117.80 = 11,396.76/x
  3. Step 3: Cross multiply
    18,745.08x = 28,117.80 × 11,396.76
  4. Step 4: Simplify right side
    18,745.08x = 320,451,818.33
  5. Step 5: Solve for x
    x = 320,451,818.33/18,745.08
  6. Step 6: Final answer
    x = 17,095.25

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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.