Home / 12,734.86-19,013.96-11,947.54

Finding the Fourth Proportional to 12,734.86, 19,013.96 and 11,947.54

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Solution

The fourth proportional to 12,734.86, 19,013.96 and 11,947.54 is: 17,838.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,734.86 : 19,013.96 = 11,947.54 : x
  2. Step 2: Convert to fraction form
    12,734.86/19,013.96 = 11,947.54/x
  3. Step 3: Cross multiply
    12,734.86x = 19,013.96 × 11,947.54
  4. Step 4: Simplify right side
    12,734.86x = 227,170,047.66
  5. Step 5: Solve for x
    x = 227,170,047.66/12,734.86
  6. Step 6: Final answer
    x = 17,838.44

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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.