Home / 13,636.22-18,814.55-7,967.70

Finding the Fourth Proportional to 13,636.22, 18,814.55 and 7,967.70

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Solution

The fourth proportional to 13,636.22, 18,814.55 and 7,967.70 is: 10,993.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.22 : 18,814.55 = 7,967.70 : x
  2. Step 2: Convert to fraction form
    13,636.22/18,814.55 = 7,967.70/x
  3. Step 3: Cross multiply
    13,636.22x = 18,814.55 × 7,967.70
  4. Step 4: Simplify right side
    13,636.22x = 149,908,650.20
  5. Step 5: Solve for x
    x = 149,908,650.20/13,636.22
  6. Step 6: Final answer
    x = 10,993.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.