Home / 11,099.34-15,318.44-7,119

Finding the Fourth Proportional to 11,099.34, 15,318.44 and 7,119

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Solution

The fourth proportional to 11,099.34, 15,318.44 and 7,119 is: 9,825.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,099.34 : 15,318.44 = 7,119 : x
  2. Step 2: Convert to fraction form
    11,099.34/15,318.44 = 7,119/x
  3. Step 3: Cross multiply
    11,099.34x = 15,318.44 × 7,119
  4. Step 4: Simplify right side
    11,099.34x = 109,051,974.36
  5. Step 5: Solve for x
    x = 109,051,974.36/11,099.34
  6. Step 6: Final answer
    x = 9,825.09

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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.