Home / 12,754.07-19,131.15-11,111.84

Finding the Fourth Proportional to 12,754.07, 19,131.15 and 11,111.84

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Solution

The fourth proportional to 12,754.07, 19,131.15 and 11,111.84 is: 16,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,754.07 : 19,131.15 = 11,111.84 : x
  2. Step 2: Convert to fraction form
    12,754.07/19,131.15 = 11,111.84/x
  3. Step 3: Cross multiply
    12,754.07x = 19,131.15 × 11,111.84
  4. Step 4: Simplify right side
    12,754.07x = 212,582,277.82
  5. Step 5: Solve for x
    x = 212,582,277.82/12,754.07
  6. Step 6: Final answer
    x = 16,667.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.