Home / 13,082.20-19,623.30-12,866.20

Finding the Fourth Proportional to 13,082.20, 19,623.30 and 12,866.20

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Solution

The fourth proportional to 13,082.20, 19,623.30 and 12,866.20 is: 19,299.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,082.20 : 19,623.30 = 12,866.20 : x
  2. Step 2: Convert to fraction form
    13,082.20/19,623.30 = 12,866.20/x
  3. Step 3: Cross multiply
    13,082.20x = 19,623.30 × 12,866.20
  4. Step 4: Simplify right side
    13,082.20x = 252,477,302.46
  5. Step 5: Solve for x
    x = 252,477,302.46/13,082.20
  6. Step 6: Final answer
    x = 19,299.30

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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.