Home / 13,229.89-19,841.47-4,905.31

Finding the Fourth Proportional to 13,229.89, 19,841.47 and 4,905.31

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Solution

The fourth proportional to 13,229.89, 19,841.47 and 4,905.31 is: 7,356.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.89 : 19,841.47 = 4,905.31 : x
  2. Step 2: Convert to fraction form
    13,229.89/19,841.47 = 4,905.31/x
  3. Step 3: Cross multiply
    13,229.89x = 19,841.47 × 4,905.31
  4. Step 4: Simplify right side
    13,229.89x = 97,328,561.21
  5. Step 5: Solve for x
    x = 97,328,561.21/13,229.89
  6. Step 6: Final answer
    x = 7,356.72

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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.