Home / 12,413.28-17,130.80-8,884.96

Finding the Fourth Proportional to 12,413.28, 17,130.80 and 8,884.96

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Solution

The fourth proportional to 12,413.28, 17,130.80 and 8,884.96 is: 12,261.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,413.28 : 17,130.80 = 8,884.96 : x
  2. Step 2: Convert to fraction form
    12,413.28/17,130.80 = 8,884.96/x
  3. Step 3: Cross multiply
    12,413.28x = 17,130.80 × 8,884.96
  4. Step 4: Simplify right side
    12,413.28x = 152,206,472.77
  5. Step 5: Solve for x
    x = 152,206,472.77/12,413.28
  6. Step 6: Final answer
    x = 12,261.58

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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.