Home / 21,208.74-29,267.91-11,777.28

Finding the Fourth Proportional to 21,208.74, 29,267.91 and 11,777.28

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Solution

The fourth proportional to 21,208.74, 29,267.91 and 11,777.28 is: 16,252.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,208.74 : 29,267.91 = 11,777.28 : x
  2. Step 2: Convert to fraction form
    21,208.74/29,267.91 = 11,777.28/x
  3. Step 3: Cross multiply
    21,208.74x = 29,267.91 × 11,777.28
  4. Step 4: Simplify right side
    21,208.74x = 344,696,371.08
  5. Step 5: Solve for x
    x = 344,696,371.08/21,208.74
  6. Step 6: Final answer
    x = 16,252.56

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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.