Home / 11,928.42-17,905.95-7,007.22

Finding the Fourth Proportional to 11,928.42, 17,905.95 and 7,007.22

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Solution

The fourth proportional to 11,928.42, 17,905.95 and 7,007.22 is: 10,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.42 : 17,905.95 = 7,007.22 : x
  2. Step 2: Convert to fraction form
    11,928.42/17,905.95 = 7,007.22/x
  3. Step 3: Cross multiply
    11,928.42x = 17,905.95 × 7,007.22
  4. Step 4: Simplify right side
    11,928.42x = 125,470,930.96
  5. Step 5: Solve for x
    x = 125,470,930.96/11,928.42
  6. Step 6: Final answer
    x = 10,518.65

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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.