Home / 12,909.33-17,811.45-7,603.11

Finding the Fourth Proportional to 12,909.33, 17,811.45 and 7,603.11

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Solution

The fourth proportional to 12,909.33, 17,811.45 and 7,603.11 is: 10,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909.33 : 17,811.45 = 7,603.11 : x
  2. Step 2: Convert to fraction form
    12,909.33/17,811.45 = 7,603.11/x
  3. Step 3: Cross multiply
    12,909.33x = 17,811.45 × 7,603.11
  4. Step 4: Simplify right side
    12,909.33x = 135,422,413.61
  5. Step 5: Solve for x
    x = 135,422,413.61/12,909.33
  6. Step 6: Final answer
    x = 10,490.27

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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.