Home / 12,760.88-19,047.63-11,821.52

Finding the Fourth Proportional to 12,760.88, 19,047.63 and 11,821.52

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Solution

The fourth proportional to 12,760.88, 19,047.63 and 11,821.52 is: 17,645.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,760.88 : 19,047.63 = 11,821.52 : x
  2. Step 2: Convert to fraction form
    12,760.88/19,047.63 = 11,821.52/x
  3. Step 3: Cross multiply
    12,760.88x = 19,047.63 × 11,821.52
  4. Step 4: Simplify right side
    12,760.88x = 225,171,939.00
  5. Step 5: Solve for x
    x = 225,171,939.00/12,760.88
  6. Step 6: Final answer
    x = 17,645.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.