Home / 13,987.08-20,985.48-6,201.36

Finding the Fourth Proportional to 13,987.08, 20,985.48 and 6,201.36

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Solution

The fourth proportional to 13,987.08, 20,985.48 and 6,201.36 is: 9,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.08 : 20,985.48 = 6,201.36 : x
  2. Step 2: Convert to fraction form
    13,987.08/20,985.48 = 6,201.36/x
  3. Step 3: Cross multiply
    13,987.08x = 20,985.48 × 6,201.36
  4. Step 4: Simplify right side
    13,987.08x = 130,138,516.25
  5. Step 5: Solve for x
    x = 130,138,516.25/13,987.08
  6. Step 6: Final answer
    x = 9,304.19

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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.