Home / 21,214.26-29,277.45-11,783.70

Finding the Fourth Proportional to 21,214.26, 29,277.45 and 11,783.70

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Solution

The fourth proportional to 21,214.26, 29,277.45 and 11,783.70 is: 16,262.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.26 : 29,277.45 = 11,783.70 : x
  2. Step 2: Convert to fraction form
    21,214.26/29,277.45 = 11,783.70/x
  3. Step 3: Cross multiply
    21,214.26x = 29,277.45 × 11,783.70
  4. Step 4: Simplify right side
    21,214.26x = 344,996,687.57
  5. Step 5: Solve for x
    x = 344,996,687.57/21,214.26
  6. Step 6: Final answer
    x = 16,262.49

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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.