Home / 8,678.09-13,018.94-3,484.37

Finding the Fourth Proportional to 8,678.09, 13,018.94 and 3,484.37

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Solution

The fourth proportional to 8,678.09, 13,018.94 and 3,484.37 is: 5,227.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.09 : 13,018.94 = 3,484.37 : x
  2. Step 2: Convert to fraction form
    8,678.09/13,018.94 = 3,484.37/x
  3. Step 3: Cross multiply
    8,678.09x = 13,018.94 × 3,484.37
  4. Step 4: Simplify right side
    8,678.09x = 45,362,803.97
  5. Step 5: Solve for x
    x = 45,362,803.97/8,678.09
  6. Step 6: Final answer
    x = 5,227.28

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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.