Home / 13,413.48-20,122.94-4,648.20

Finding the Fourth Proportional to 13,413.48, 20,122.94 and 4,648.20

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Solution

The fourth proportional to 13,413.48, 20,122.94 and 4,648.20 is: 6,973.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.48 : 20,122.94 = 4,648.20 : x
  2. Step 2: Convert to fraction form
    13,413.48/20,122.94 = 4,648.20/x
  3. Step 3: Cross multiply
    13,413.48x = 20,122.94 × 4,648.20
  4. Step 4: Simplify right side
    13,413.48x = 93,535,449.71
  5. Step 5: Solve for x
    x = 93,535,449.71/13,413.48
  6. Step 6: Final answer
    x = 6,973.24

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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.