Home / 19,683.90-27,173.82-13,344

Finding the Fourth Proportional to 19,683.90, 27,173.82 and 13,344

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Solution

The fourth proportional to 19,683.90, 27,173.82 and 13,344 is: 18,421.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,683.90 : 27,173.82 = 13,344 : x
  2. Step 2: Convert to fraction form
    19,683.90/27,173.82 = 13,344/x
  3. Step 3: Cross multiply
    19,683.90x = 27,173.82 × 13,344
  4. Step 4: Simplify right side
    19,683.90x = 362,607,454.08
  5. Step 5: Solve for x
    x = 362,607,454.08/19,683.90
  6. Step 6: Final answer
    x = 18,421.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.