Home / 15,455.51-21,320.97-10,413.26

Finding the Fourth Proportional to 15,455.51, 21,320.97 and 10,413.26

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Solution

The fourth proportional to 15,455.51, 21,320.97 and 10,413.26 is: 14,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,455.51 : 21,320.97 = 10,413.26 : x
  2. Step 2: Convert to fraction form
    15,455.51/21,320.97 = 10,413.26/x
  3. Step 3: Cross multiply
    15,455.51x = 21,320.97 × 10,413.26
  4. Step 4: Simplify right side
    15,455.51x = 222,020,796.94
  5. Step 5: Solve for x
    x = 222,020,796.94/15,455.51
  6. Step 6: Final answer
    x = 14,365.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.