Home / 18,409.30-27,622.15-6,719.78

Finding the Fourth Proportional to 18,409.30, 27,622.15 and 6,719.78

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Solution

The fourth proportional to 18,409.30, 27,622.15 and 6,719.78 is: 10,082.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,409.30 : 27,622.15 = 6,719.78 : x
  2. Step 2: Convert to fraction form
    18,409.30/27,622.15 = 6,719.78/x
  3. Step 3: Cross multiply
    18,409.30x = 27,622.15 × 6,719.78
  4. Step 4: Simplify right side
    18,409.30x = 185,614,823.38
  5. Step 5: Solve for x
    x = 185,614,823.38/18,409.30
  6. Step 6: Final answer
    x = 10,082.67

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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.