Home / 17,016.66-25,427.36-12,991.77

Finding the Fourth Proportional to 17,016.66, 25,427.36 and 12,991.77

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Solution

The fourth proportional to 17,016.66, 25,427.36 and 12,991.77 is: 19,413.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,016.66 : 25,427.36 = 12,991.77 : x
  2. Step 2: Convert to fraction form
    17,016.66/25,427.36 = 12,991.77/x
  3. Step 3: Cross multiply
    17,016.66x = 25,427.36 × 12,991.77
  4. Step 4: Simplify right side
    17,016.66x = 330,346,412.83
  5. Step 5: Solve for x
    x = 330,346,412.83/17,016.66
  6. Step 6: Final answer
    x = 19,413.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.