Home / 13,650.63-20,476.29-3,789.89

Finding the Fourth Proportional to 13,650.63, 20,476.29 and 3,789.89

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Solution

The fourth proportional to 13,650.63, 20,476.29 and 3,789.89 is: 5,684.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.63 : 20,476.29 = 3,789.89 : x
  2. Step 2: Convert to fraction form
    13,650.63/20,476.29 = 3,789.89/x
  3. Step 3: Cross multiply
    13,650.63x = 20,476.29 × 3,789.89
  4. Step 4: Simplify right side
    13,650.63x = 77,602,875.32
  5. Step 5: Solve for x
    x = 77,602,875.32/13,650.63
  6. Step 6: Final answer
    x = 5,684.93

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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.