Home / 14,109.09-21,154.05-5,786.70

Finding the Fourth Proportional to 14,109.09, 21,154.05 and 5,786.70

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Solution

The fourth proportional to 14,109.09, 21,154.05 and 5,786.70 is: 8,676.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.09 : 21,154.05 = 5,786.70 : x
  2. Step 2: Convert to fraction form
    14,109.09/21,154.05 = 5,786.70/x
  3. Step 3: Cross multiply
    14,109.09x = 21,154.05 × 5,786.70
  4. Step 4: Simplify right side
    14,109.09x = 122,412,141.14
  5. Step 5: Solve for x
    x = 122,412,141.14/14,109.09
  6. Step 6: Final answer
    x = 8,676.12

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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.