Home / 15,413.17-21,270.72-8,698.41

Finding the Fourth Proportional to 15,413.17, 21,270.72 and 8,698.41

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Solution

The fourth proportional to 15,413.17, 21,270.72 and 8,698.41 is: 12,004.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,413.17 : 21,270.72 = 8,698.41 : x
  2. Step 2: Convert to fraction form
    15,413.17/21,270.72 = 8,698.41/x
  3. Step 3: Cross multiply
    15,413.17x = 21,270.72 × 8,698.41
  4. Step 4: Simplify right side
    15,413.17x = 185,021,443.56
  5. Step 5: Solve for x
    x = 185,021,443.56/15,413.17
  6. Step 6: Final answer
    x = 12,004.11

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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.