Home / 9,120.81-13,683.33-2,881.44

Finding the Fourth Proportional to 9,120.81, 13,683.33 and 2,881.44

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Solution

The fourth proportional to 9,120.81, 13,683.33 and 2,881.44 is: 4,322.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.81 : 13,683.33 = 2,881.44 : x
  2. Step 2: Convert to fraction form
    9,120.81/13,683.33 = 2,881.44/x
  3. Step 3: Cross multiply
    9,120.81x = 13,683.33 × 2,881.44
  4. Step 4: Simplify right side
    9,120.81x = 39,427,694.40
  5. Step 5: Solve for x
    x = 39,427,694.40/9,120.81
  6. Step 6: Final answer
    x = 4,322.83

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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.