Home / 13,455.83-20,186.19-5,554.04

Finding the Fourth Proportional to 13,455.83, 20,186.19 and 5,554.04

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Solution

The fourth proportional to 13,455.83, 20,186.19 and 5,554.04 is: 8,332.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.83 : 20,186.19 = 5,554.04 : x
  2. Step 2: Convert to fraction form
    13,455.83/20,186.19 = 5,554.04/x
  3. Step 3: Cross multiply
    13,455.83x = 20,186.19 × 5,554.04
  4. Step 4: Simplify right side
    13,455.83x = 112,114,805.78
  5. Step 5: Solve for x
    x = 112,114,805.78/13,455.83
  6. Step 6: Final answer
    x = 8,332.06

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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.