Home / 13,736.18-20,601.12-8,191.10

Finding the Fourth Proportional to 13,736.18, 20,601.12 and 8,191.10

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Solution

The fourth proportional to 13,736.18, 20,601.12 and 8,191.10 is: 12,284.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.18 : 20,601.12 = 8,191.10 : x
  2. Step 2: Convert to fraction form
    13,736.18/20,601.12 = 8,191.10/x
  3. Step 3: Cross multiply
    13,736.18x = 20,601.12 × 8,191.10
  4. Step 4: Simplify right side
    13,736.18x = 168,745,834.03
  5. Step 5: Solve for x
    x = 168,745,834.03/13,736.18
  6. Step 6: Final answer
    x = 12,284.77

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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.