Home / 12,763.12-17,608.10-9,413.98

Finding the Fourth Proportional to 12,763.12, 17,608.10 and 9,413.98

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Solution

The fourth proportional to 12,763.12, 17,608.10 and 9,413.98 is: 12,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763.12 : 17,608.10 = 9,413.98 : x
  2. Step 2: Convert to fraction form
    12,763.12/17,608.10 = 9,413.98/x
  3. Step 3: Cross multiply
    12,763.12x = 17,608.10 × 9,413.98
  4. Step 4: Simplify right side
    12,763.12x = 165,762,301.24
  5. Step 5: Solve for x
    x = 165,762,301.24/12,763.12
  6. Step 6: Final answer
    x = 12,987.60

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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.