Home / 13,280.03-19,923.38-3,919.67

Finding the Fourth Proportional to 13,280.03, 19,923.38 and 3,919.67

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Solution

The fourth proportional to 13,280.03, 19,923.38 and 3,919.67 is: 5,880.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.03 : 19,923.38 = 3,919.67 : x
  2. Step 2: Convert to fraction form
    13,280.03/19,923.38 = 3,919.67/x
  3. Step 3: Cross multiply
    13,280.03x = 19,923.38 × 3,919.67
  4. Step 4: Simplify right side
    13,280.03x = 78,092,985.07
  5. Step 5: Solve for x
    x = 78,092,985.07/13,280.03
  6. Step 6: Final answer
    x = 5,880.48

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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.