Home / 14,814.36-20,443.71-8,100.09

Finding the Fourth Proportional to 14,814.36, 20,443.71 and 8,100.09

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Solution

The fourth proportional to 14,814.36, 20,443.71 and 8,100.09 is: 11,178.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,814.36 : 20,443.71 = 8,100.09 : x
  2. Step 2: Convert to fraction form
    14,814.36/20,443.71 = 8,100.09/x
  3. Step 3: Cross multiply
    14,814.36x = 20,443.71 × 8,100.09
  4. Step 4: Simplify right side
    14,814.36x = 165,595,890.93
  5. Step 5: Solve for x
    x = 165,595,890.93/14,814.36
  6. Step 6: Final answer
    x = 11,178.07

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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.