Home / 8,222.88-11,350.80-5,427.36

Finding the Fourth Proportional to 8,222.88, 11,350.80 and 5,427.36

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Solution

The fourth proportional to 8,222.88, 11,350.80 and 5,427.36 is: 7,491.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.88 : 11,350.80 = 5,427.36 : x
  2. Step 2: Convert to fraction form
    8,222.88/11,350.80 = 5,427.36/x
  3. Step 3: Cross multiply
    8,222.88x = 11,350.80 × 5,427.36
  4. Step 4: Simplify right side
    8,222.88x = 61,604,877.89
  5. Step 5: Solve for x
    x = 61,604,877.89/8,222.88
  6. Step 6: Final answer
    x = 7,491.89

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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.