Home / 13,289.31-19,920.29-5,897.25

Finding the Fourth Proportional to 13,289.31, 19,920.29 and 5,897.25

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Solution

The fourth proportional to 13,289.31, 19,920.29 and 5,897.25 is: 8,839.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.31 : 19,920.29 = 5,897.25 : x
  2. Step 2: Convert to fraction form
    13,289.31/19,920.29 = 5,897.25/x
  3. Step 3: Cross multiply
    13,289.31x = 19,920.29 × 5,897.25
  4. Step 4: Simplify right side
    13,289.31x = 117,474,930.20
  5. Step 5: Solve for x
    x = 117,474,930.20/13,289.31
  6. Step 6: Final answer
    x = 8,839.81

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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.