Home / 13,210.32-18,230.80-7,546

Finding the Fourth Proportional to 13,210.32, 18,230.80 and 7,546

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Solution

The fourth proportional to 13,210.32, 18,230.80 and 7,546 is: 10,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.32 : 18,230.80 = 7,546 : x
  2. Step 2: Convert to fraction form
    13,210.32/18,230.80 = 7,546/x
  3. Step 3: Cross multiply
    13,210.32x = 18,230.80 × 7,546
  4. Step 4: Simplify right side
    13,210.32x = 137,569,616.80
  5. Step 5: Solve for x
    x = 137,569,616.80/13,210.32
  6. Step 6: Final answer
    x = 10,413.80

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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.