Home / 12,687.48-19,053.90-11,054.52

Finding the Fourth Proportional to 12,687.48, 19,053.90 and 11,054.52

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Solution

The fourth proportional to 12,687.48, 19,053.90 and 11,054.52 is: 16,601.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687.48 : 19,053.90 = 11,054.52 : x
  2. Step 2: Convert to fraction form
    12,687.48/19,053.90 = 11,054.52/x
  3. Step 3: Cross multiply
    12,687.48x = 19,053.90 × 11,054.52
  4. Step 4: Simplify right side
    12,687.48x = 210,631,718.63
  5. Step 5: Solve for x
    x = 210,631,718.63/12,687.48
  6. Step 6: Final answer
    x = 16,601.54

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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.