Home / 13,677.06-18,879.03-8,013.63

Finding the Fourth Proportional to 13,677.06, 18,879.03 and 8,013.63

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Solution

The fourth proportional to 13,677.06, 18,879.03 and 8,013.63 is: 11,061.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.06 : 18,879.03 = 8,013.63 : x
  2. Step 2: Convert to fraction form
    13,677.06/18,879.03 = 8,013.63/x
  3. Step 3: Cross multiply
    13,677.06x = 18,879.03 × 8,013.63
  4. Step 4: Simplify right side
    13,677.06x = 151,289,561.18
  5. Step 5: Solve for x
    x = 151,289,561.18/13,677.06
  6. Step 6: Final answer
    x = 11,061.56

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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.