Home / 13,823.36-20,730.48-5,505.44

Finding the Fourth Proportional to 13,823.36, 20,730.48 and 5,505.44

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Solution

The fourth proportional to 13,823.36, 20,730.48 and 5,505.44 is: 8,256.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.36 : 20,730.48 = 5,505.44 : x
  2. Step 2: Convert to fraction form
    13,823.36/20,730.48 = 5,505.44/x
  3. Step 3: Cross multiply
    13,823.36x = 20,730.48 × 5,505.44
  4. Step 4: Simplify right side
    13,823.36x = 114,130,413.81
  5. Step 5: Solve for x
    x = 114,130,413.81/13,823.36
  6. Step 6: Final answer
    x = 8,256.34

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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.