Home / 13,675.74-20,516.85-4,911.54

Finding the Fourth Proportional to 13,675.74, 20,516.85 and 4,911.54

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Solution

The fourth proportional to 13,675.74, 20,516.85 and 4,911.54 is: 7,368.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.74 : 20,516.85 = 4,911.54 : x
  2. Step 2: Convert to fraction form
    13,675.74/20,516.85 = 4,911.54/x
  3. Step 3: Cross multiply
    13,675.74x = 20,516.85 × 4,911.54
  4. Step 4: Simplify right side
    13,675.74x = 100,769,329.45
  5. Step 5: Solve for x
    x = 100,769,329.45/13,675.74
  6. Step 6: Final answer
    x = 7,368.47

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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.