Home / 13,474.21-20,162.10-7,930.18

Finding the Fourth Proportional to 13,474.21, 20,162.10 and 7,930.18

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Solution

The fourth proportional to 13,474.21, 20,162.10 and 7,930.18 is: 11,866.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,474.21 : 20,162.10 = 7,930.18 : x
  2. Step 2: Convert to fraction form
    13,474.21/20,162.10 = 7,930.18/x
  3. Step 3: Cross multiply
    13,474.21x = 20,162.10 × 7,930.18
  4. Step 4: Simplify right side
    13,474.21x = 159,889,082.18
  5. Step 5: Solve for x
    x = 159,889,082.18/13,474.21
  6. Step 6: Final answer
    x = 11,866.30

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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.