Home / 12,807.08-19,216.56-5,413.26

Finding the Fourth Proportional to 12,807.08, 19,216.56 and 5,413.26

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Solution

The fourth proportional to 12,807.08, 19,216.56 and 5,413.26 is: 8,122.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,807.08 : 19,216.56 = 5,413.26 : x
  2. Step 2: Convert to fraction form
    12,807.08/19,216.56 = 5,413.26/x
  3. Step 3: Cross multiply
    12,807.08x = 19,216.56 × 5,413.26
  4. Step 4: Simplify right side
    12,807.08x = 104,024,327.95
  5. Step 5: Solve for x
    x = 104,024,327.95/12,807.08
  6. Step 6: Final answer
    x = 8,122.41

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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.