Home / 19,772.37-27,285.12-11,809.85

Finding the Fourth Proportional to 19,772.37, 27,285.12 and 11,809.85

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Solution

The fourth proportional to 19,772.37, 27,285.12 and 11,809.85 is: 16,297.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.37 : 27,285.12 = 11,809.85 : x
  2. Step 2: Convert to fraction form
    19,772.37/27,285.12 = 11,809.85/x
  3. Step 3: Cross multiply
    19,772.37x = 27,285.12 × 11,809.85
  4. Step 4: Simplify right side
    19,772.37x = 322,233,038.01
  5. Step 5: Solve for x
    x = 322,233,038.01/19,772.37
  6. Step 6: Final answer
    x = 16,297.14

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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.