Home / 19,772.51-27,285.24-11,819.12

Finding the Fourth Proportional to 19,772.51, 27,285.24 and 11,819.12

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Solution

The fourth proportional to 19,772.51, 27,285.24 and 11,819.12 is: 16,309.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.51 : 27,285.24 = 11,819.12 : x
  2. Step 2: Convert to fraction form
    19,772.51/27,285.24 = 11,819.12/x
  3. Step 3: Cross multiply
    19,772.51x = 27,285.24 × 11,819.12
  4. Step 4: Simplify right side
    19,772.51x = 322,487,389.36
  5. Step 5: Solve for x
    x = 322,487,389.36/19,772.51
  6. Step 6: Final answer
    x = 16,309.89

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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.