Home / 14,082.87-21,157.11-8,243.58

Finding the Fourth Proportional to 14,082.87, 21,157.11 and 8,243.58

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Solution

The fourth proportional to 14,082.87, 21,157.11 and 8,243.58 is: 12,384.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,082.87 : 21,157.11 = 8,243.58 : x
  2. Step 2: Convert to fraction form
    14,082.87/21,157.11 = 8,243.58/x
  3. Step 3: Cross multiply
    14,082.87x = 21,157.11 × 8,243.58
  4. Step 4: Simplify right side
    14,082.87x = 174,410,328.85
  5. Step 5: Solve for x
    x = 174,410,328.85/14,082.87
  6. Step 6: Final answer
    x = 12,384.57

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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.