Home / 21,134.14-29,166.03-11,702.70

Finding the Fourth Proportional to 21,134.14, 29,166.03 and 11,702.70

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Solution

The fourth proportional to 21,134.14, 29,166.03 and 11,702.70 is: 16,150.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.14 : 29,166.03 = 11,702.70 : x
  2. Step 2: Convert to fraction form
    21,134.14/29,166.03 = 11,702.70/x
  3. Step 3: Cross multiply
    21,134.14x = 29,166.03 × 11,702.70
  4. Step 4: Simplify right side
    21,134.14x = 341,321,299.28
  5. Step 5: Solve for x
    x = 341,321,299.28/21,134.14
  6. Step 6: Final answer
    x = 16,150.23

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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.