Home / 9,920.94-14,881.55-3,678.54

Finding the Fourth Proportional to 9,920.94, 14,881.55 and 3,678.54

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Solution

The fourth proportional to 9,920.94, 14,881.55 and 3,678.54 is: 5,517.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920.94 : 14,881.55 = 3,678.54 : x
  2. Step 2: Convert to fraction form
    9,920.94/14,881.55 = 3,678.54/x
  3. Step 3: Cross multiply
    9,920.94x = 14,881.55 × 3,678.54
  4. Step 4: Simplify right side
    9,920.94x = 54,742,376.94
  5. Step 5: Solve for x
    x = 54,742,376.94/9,920.94
  6. Step 6: Final answer
    x = 5,517.86

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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.