Home / 13,516.93-20,268.78-4,750.57

Finding the Fourth Proportional to 13,516.93, 20,268.78 and 4,750.57

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Solution

The fourth proportional to 13,516.93, 20,268.78 and 4,750.57 is: 7,123.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.93 : 20,268.78 = 4,750.57 : x
  2. Step 2: Convert to fraction form
    13,516.93/20,268.78 = 4,750.57/x
  3. Step 3: Cross multiply
    13,516.93x = 20,268.78 × 4,750.57
  4. Step 4: Simplify right side
    13,516.93x = 96,288,258.20
  5. Step 5: Solve for x
    x = 96,288,258.20/13,516.93
  6. Step 6: Final answer
    x = 7,123.53

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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.