Home / 12,093.80-18,140.70-11,581.80

Finding the Fourth Proportional to 12,093.80, 18,140.70 and 11,581.80

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Solution

The fourth proportional to 12,093.80, 18,140.70 and 11,581.80 is: 17,372.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,093.80 : 18,140.70 = 11,581.80 : x
  2. Step 2: Convert to fraction form
    12,093.80/18,140.70 = 11,581.80/x
  3. Step 3: Cross multiply
    12,093.80x = 18,140.70 × 11,581.80
  4. Step 4: Simplify right side
    12,093.80x = 210,101,959.26
  5. Step 5: Solve for x
    x = 210,101,959.26/12,093.80
  6. Step 6: Final answer
    x = 17,372.70

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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.