Home / 18,738.06-28,082.86-7,631.76

Finding the Fourth Proportional to 18,738.06, 28,082.86 and 7,631.76

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Solution

The fourth proportional to 18,738.06, 28,082.86 and 7,631.76 is: 11,437.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.06 : 28,082.86 = 7,631.76 : x
  2. Step 2: Convert to fraction form
    18,738.06/28,082.86 = 7,631.76/x
  3. Step 3: Cross multiply
    18,738.06x = 28,082.86 × 7,631.76
  4. Step 4: Simplify right side
    18,738.06x = 214,321,647.63
  5. Step 5: Solve for x
    x = 214,321,647.63/18,738.06
  6. Step 6: Final answer
    x = 11,437.77

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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.