Home / 12,858.32-17,835.38-12,517.11

Finding the Fourth Proportional to 12,858.32, 17,835.38 and 12,517.11

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Solution

The fourth proportional to 12,858.32, 17,835.38 and 12,517.11 is: 17,362.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.32 : 17,835.38 = 12,517.11 : x
  2. Step 2: Convert to fraction form
    12,858.32/17,835.38 = 12,517.11/x
  3. Step 3: Cross multiply
    12,858.32x = 17,835.38 × 12,517.11
  4. Step 4: Simplify right side
    12,858.32x = 223,247,413.35
  5. Step 5: Solve for x
    x = 223,247,413.35/12,858.32
  6. Step 6: Final answer
    x = 17,362.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.