Home / 18,370.75-27,509.38-12,111.77

Finding the Fourth Proportional to 18,370.75, 27,509.38 and 12,111.77

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Solution

The fourth proportional to 18,370.75, 27,509.38 and 12,111.77 is: 18,136.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,370.75 : 27,509.38 = 12,111.77 : x
  2. Step 2: Convert to fraction form
    18,370.75/27,509.38 = 12,111.77/x
  3. Step 3: Cross multiply
    18,370.75x = 27,509.38 × 12,111.77
  4. Step 4: Simplify right side
    18,370.75x = 333,187,244.53
  5. Step 5: Solve for x
    x = 333,187,244.53/18,370.75
  6. Step 6: Final answer
    x = 18,136.84

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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.