Home / 21,214.89-29,277.15-11,784.06

Finding the Fourth Proportional to 21,214.89, 29,277.15 and 11,784.06

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Solution

The fourth proportional to 21,214.89, 29,277.15 and 11,784.06 is: 16,262.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.89 : 29,277.15 = 11,784.06 : x
  2. Step 2: Convert to fraction form
    21,214.89/29,277.15 = 11,784.06/x
  3. Step 3: Cross multiply
    21,214.89x = 29,277.15 × 11,784.06
  4. Step 4: Simplify right side
    21,214.89x = 345,003,692.23
  5. Step 5: Solve for x
    x = 345,003,692.23/21,214.89
  6. Step 6: Final answer
    x = 16,262.34

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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.