Home / 13,636.75-20,434.16-8,079.04

Finding the Fourth Proportional to 13,636.75, 20,434.16 and 8,079.04

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Solution

The fourth proportional to 13,636.75, 20,434.16 and 8,079.04 is: 12,106.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.75 : 20,434.16 = 8,079.04 : x
  2. Step 2: Convert to fraction form
    13,636.75/20,434.16 = 8,079.04/x
  3. Step 3: Cross multiply
    13,636.75x = 20,434.16 × 8,079.04
  4. Step 4: Simplify right side
    13,636.75x = 165,088,396.01
  5. Step 5: Solve for x
    x = 165,088,396.01/13,636.75
  6. Step 6: Final answer
    x = 12,106.14

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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.