Home / 21,214.50-29,276.04-11,783.94

Finding the Fourth Proportional to 21,214.50, 29,276.04 and 11,783.94

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Solution

The fourth proportional to 21,214.50, 29,276.04 and 11,783.94 is: 16,261.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.50 : 29,276.04 = 11,783.94 : x
  2. Step 2: Convert to fraction form
    21,214.50/29,276.04 = 11,783.94/x
  3. Step 3: Cross multiply
    21,214.50x = 29,276.04 × 11,783.94
  4. Step 4: Simplify right side
    21,214.50x = 344,987,098.80
  5. Step 5: Solve for x
    x = 344,987,098.80/21,214.50
  6. Step 6: Final answer
    x = 16,261.85

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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.