Home / 21,126.03-29,153.93-11,694.59

Finding the Fourth Proportional to 21,126.03, 29,153.93 and 11,694.59

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Solution

The fourth proportional to 21,126.03, 29,153.93 and 11,694.59 is: 16,138.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,126.03 : 29,153.93 = 11,694.59 : x
  2. Step 2: Convert to fraction form
    21,126.03/29,153.93 = 11,694.59/x
  3. Step 3: Cross multiply
    21,126.03x = 29,153.93 × 11,694.59
  4. Step 4: Simplify right side
    21,126.03x = 340,943,204.32
  5. Step 5: Solve for x
    x = 340,943,204.32/21,126.03
  6. Step 6: Final answer
    x = 16,138.54

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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.