Home / 11,316.45-16,974.41-4,390.95

Finding the Fourth Proportional to 11,316.45, 16,974.41 and 4,390.95

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Solution

The fourth proportional to 11,316.45, 16,974.41 and 4,390.95 is: 6,586.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.45 : 16,974.41 = 4,390.95 : x
  2. Step 2: Convert to fraction form
    11,316.45/16,974.41 = 4,390.95/x
  3. Step 3: Cross multiply
    11,316.45x = 16,974.41 × 4,390.95
  4. Step 4: Simplify right side
    11,316.45x = 74,533,763.63
  5. Step 5: Solve for x
    x = 74,533,763.63/11,316.45
  6. Step 6: Final answer
    x = 6,586.32

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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.