Home / 13,963.21-19,272.80-8,654.87

Finding the Fourth Proportional to 13,963.21, 19,272.80 and 8,654.87

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Solution

The fourth proportional to 13,963.21, 19,272.80 and 8,654.87 is: 11,945.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,963.21 : 19,272.80 = 8,654.87 : x
  2. Step 2: Convert to fraction form
    13,963.21/19,272.80 = 8,654.87/x
  3. Step 3: Cross multiply
    13,963.21x = 19,272.80 × 8,654.87
  4. Step 4: Simplify right side
    13,963.21x = 166,803,578.54
  5. Step 5: Solve for x
    x = 166,803,578.54/13,963.21
  6. Step 6: Final answer
    x = 11,945.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.