Home / 13,209.74-19,817.19-4,889.82

Finding the Fourth Proportional to 13,209.74, 19,817.19 and 4,889.82

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Solution

The fourth proportional to 13,209.74, 19,817.19 and 4,889.82 is: 7,335.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.74 : 19,817.19 = 4,889.82 : x
  2. Step 2: Convert to fraction form
    13,209.74/19,817.19 = 4,889.82/x
  3. Step 3: Cross multiply
    13,209.74x = 19,817.19 × 4,889.82
  4. Step 4: Simplify right side
    13,209.74x = 96,902,492.01
  5. Step 5: Solve for x
    x = 96,902,492.01/13,209.74
  6. Step 6: Final answer
    x = 7,335.69

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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.