Home / 18,790.95-28,186.41-7,697.67

Finding the Fourth Proportional to 18,790.95, 28,186.41 and 7,697.67

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Solution

The fourth proportional to 18,790.95, 28,186.41 and 7,697.67 is: 11,546.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.95 : 28,186.41 = 7,697.67 : x
  2. Step 2: Convert to fraction form
    18,790.95/28,186.41 = 7,697.67/x
  3. Step 3: Cross multiply
    18,790.95x = 28,186.41 × 7,697.67
  4. Step 4: Simplify right side
    18,790.95x = 216,969,605.83
  5. Step 5: Solve for x
    x = 216,969,605.83/18,790.95
  6. Step 6: Final answer
    x = 11,546.49

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Half scale
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Double scale
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Similar ratio
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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.