Home / 9,221.31-13,829.40-4,285.98

Finding the Fourth Proportional to 9,221.31, 13,829.40 and 4,285.98

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Solution

The fourth proportional to 9,221.31, 13,829.40 and 4,285.98 is: 6,427.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.31 : 13,829.40 = 4,285.98 : x
  2. Step 2: Convert to fraction form
    9,221.31/13,829.40 = 4,285.98/x
  3. Step 3: Cross multiply
    9,221.31x = 13,829.40 × 4,285.98
  4. Step 4: Simplify right side
    9,221.31x = 59,272,531.81
  5. Step 5: Solve for x
    x = 59,272,531.81/9,221.31
  6. Step 6: Final answer
    x = 6,427.78

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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.