Home / 11,021.62-15,209.79-5,985.81

Finding the Fourth Proportional to 11,021.62, 15,209.79 and 5,985.81

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Solution

The fourth proportional to 11,021.62, 15,209.79 and 5,985.81 is: 8,260.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,021.62 : 15,209.79 = 5,985.81 : x
  2. Step 2: Convert to fraction form
    11,021.62/15,209.79 = 5,985.81/x
  3. Step 3: Cross multiply
    11,021.62x = 15,209.79 × 5,985.81
  4. Step 4: Simplify right side
    11,021.62x = 91,042,913.08
  5. Step 5: Solve for x
    x = 91,042,913.08/11,021.62
  6. Step 6: Final answer
    x = 8,260.39

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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.