Home / 9,120.96-13,683.03-3,784.14

Finding the Fourth Proportional to 9,120.96, 13,683.03 and 3,784.14

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Solution

The fourth proportional to 9,120.96, 13,683.03 and 3,784.14 is: 5,676.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.96 : 13,683.03 = 3,784.14 : x
  2. Step 2: Convert to fraction form
    9,120.96/13,683.03 = 3,784.14/x
  3. Step 3: Cross multiply
    9,120.96x = 13,683.03 × 3,784.14
  4. Step 4: Simplify right side
    9,120.96x = 51,778,501.14
  5. Step 5: Solve for x
    x = 51,778,501.14/9,120.96
  6. Step 6: Final answer
    x = 5,676.87

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1.5x scale

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.