Home / 13,560.08-20,242.42-11,810

Finding the Fourth Proportional to 13,560.08, 20,242.42 and 11,810

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Solution

The fourth proportional to 13,560.08, 20,242.42 and 11,810 is: 17,629.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560.08 : 20,242.42 = 11,810 : x
  2. Step 2: Convert to fraction form
    13,560.08/20,242.42 = 11,810/x
  3. Step 3: Cross multiply
    13,560.08x = 20,242.42 × 11,810
  4. Step 4: Simplify right side
    13,560.08x = 239,062,980.20
  5. Step 5: Solve for x
    x = 239,062,980.20/13,560.08
  6. Step 6: Final answer
    x = 17,629.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.