Home / 12,077.58-18,085.44-7,150.76

Finding the Fourth Proportional to 12,077.58, 18,085.44 and 7,150.76

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Solution

The fourth proportional to 12,077.58, 18,085.44 and 7,150.76 is: 10,707.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.58 : 18,085.44 = 7,150.76 : x
  2. Step 2: Convert to fraction form
    12,077.58/18,085.44 = 7,150.76/x
  3. Step 3: Cross multiply
    12,077.58x = 18,085.44 × 7,150.76
  4. Step 4: Simplify right side
    12,077.58x = 129,324,640.93
  5. Step 5: Solve for x
    x = 129,324,640.93/12,077.58
  6. Step 6: Final answer
    x = 10,707.83

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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.