Home / 13,203.36-19,779.40-11,801.28

Finding the Fourth Proportional to 13,203.36, 19,779.40 and 11,801.28

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Solution

The fourth proportional to 13,203.36, 19,779.40 and 11,801.28 is: 17,679.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.36 : 19,779.40 = 11,801.28 : x
  2. Step 2: Convert to fraction form
    13,203.36/19,779.40 = 11,801.28/x
  3. Step 3: Cross multiply
    13,203.36x = 19,779.40 × 11,801.28
  4. Step 4: Simplify right side
    13,203.36x = 233,422,237.63
  5. Step 5: Solve for x
    x = 233,422,237.63/13,203.36
  6. Step 6: Final answer
    x = 17,679.00

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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.