Home / 11,362.08-15,678.57-8,379.54

Finding the Fourth Proportional to 11,362.08, 15,678.57 and 8,379.54

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Solution

The fourth proportional to 11,362.08, 15,678.57 and 8,379.54 is: 11,562.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,362.08 : 15,678.57 = 8,379.54 : x
  2. Step 2: Convert to fraction form
    11,362.08/15,678.57 = 8,379.54/x
  3. Step 3: Cross multiply
    11,362.08x = 15,678.57 × 8,379.54
  4. Step 4: Simplify right side
    11,362.08x = 131,379,204.46
  5. Step 5: Solve for x
    x = 131,379,204.46/11,362.08
  6. Step 6: Final answer
    x = 11,562.95

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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.