Home / 13,222.94-19,836.70-4,457.92

Finding the Fourth Proportional to 13,222.94, 19,836.70 and 4,457.92

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Solution

The fourth proportional to 13,222.94, 19,836.70 and 4,457.92 is: 6,687.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.94 : 19,836.70 = 4,457.92 : x
  2. Step 2: Convert to fraction form
    13,222.94/19,836.70 = 4,457.92/x
  3. Step 3: Cross multiply
    13,222.94x = 19,836.70 × 4,457.92
  4. Step 4: Simplify right side
    13,222.94x = 88,430,421.66
  5. Step 5: Solve for x
    x = 88,430,421.66/13,222.94
  6. Step 6: Final answer
    x = 6,687.65

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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.