Home / 13,324.72-19,987.80-4,090

Finding the Fourth Proportional to 13,324.72, 19,987.80 and 4,090

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Solution

The fourth proportional to 13,324.72, 19,987.80 and 4,090 is: 6,135.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.72 : 19,987.80 = 4,090 : x
  2. Step 2: Convert to fraction form
    13,324.72/19,987.80 = 4,090/x
  3. Step 3: Cross multiply
    13,324.72x = 19,987.80 × 4,090
  4. Step 4: Simplify right side
    13,324.72x = 81,750,102
  5. Step 5: Solve for x
    x = 81,750,102/13,324.72
  6. Step 6: Final answer
    x = 6,135.22

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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.