Home / 13,457.53-20,178.60-5,671.81

Finding the Fourth Proportional to 13,457.53, 20,178.60 and 5,671.81

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Solution

The fourth proportional to 13,457.53, 20,178.60 and 5,671.81 is: 8,504.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.53 : 20,178.60 = 5,671.81 : x
  2. Step 2: Convert to fraction form
    13,457.53/20,178.60 = 5,671.81/x
  3. Step 3: Cross multiply
    13,457.53x = 20,178.60 × 5,671.81
  4. Step 4: Simplify right side
    13,457.53x = 114,449,185.27
  5. Step 5: Solve for x
    x = 114,449,185.27/13,457.53
  6. Step 6: Final answer
    x = 8,504.47

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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.