Home / 12,618.96-17,413.53-7,315.44

Finding the Fourth Proportional to 12,618.96, 17,413.53 and 7,315.44

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Solution

The fourth proportional to 12,618.96, 17,413.53 and 7,315.44 is: 10,094.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618.96 : 17,413.53 = 7,315.44 : x
  2. Step 2: Convert to fraction form
    12,618.96/17,413.53 = 7,315.44/x
  3. Step 3: Cross multiply
    12,618.96x = 17,413.53 × 7,315.44
  4. Step 4: Simplify right side
    12,618.96x = 127,387,633.90
  5. Step 5: Solve for x
    x = 127,387,633.90/12,618.96
  6. Step 6: Final answer
    x = 10,094.94

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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.