Home / 13,949.94-20,931.60-8,683.57

Finding the Fourth Proportional to 13,949.94, 20,931.60 and 8,683.57

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Solution

The fourth proportional to 13,949.94, 20,931.60 and 8,683.57 is: 13,029.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.94 : 20,931.60 = 8,683.57 : x
  2. Step 2: Convert to fraction form
    13,949.94/20,931.60 = 8,683.57/x
  3. Step 3: Cross multiply
    13,949.94x = 20,931.60 × 8,683.57
  4. Step 4: Simplify right side
    13,949.94x = 181,761,039.98
  5. Step 5: Solve for x
    x = 181,761,039.98/13,949.94
  6. Step 6: Final answer
    x = 13,029.52

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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.