Home / 8,133.78-11,208.87-5,771.82

Finding the Fourth Proportional to 8,133.78, 11,208.87 and 5,771.82

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Solution

The fourth proportional to 8,133.78, 11,208.87 and 5,771.82 is: 7,953.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.78 : 11,208.87 = 5,771.82 : x
  2. Step 2: Convert to fraction form
    8,133.78/11,208.87 = 5,771.82/x
  3. Step 3: Cross multiply
    8,133.78x = 11,208.87 × 5,771.82
  4. Step 4: Simplify right side
    8,133.78x = 64,695,580.04
  5. Step 5: Solve for x
    x = 64,695,580.04/8,133.78
  6. Step 6: Final answer
    x = 7,953.94

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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.