Home / 15,413.67-21,271.41-8,698.92

Finding the Fourth Proportional to 15,413.67, 21,271.41 and 8,698.92

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Solution

The fourth proportional to 15,413.67, 21,271.41 and 8,698.92 is: 12,004.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,413.67 : 21,271.41 = 8,698.92 : x
  2. Step 2: Convert to fraction form
    15,413.67/21,271.41 = 8,698.92/x
  3. Step 3: Cross multiply
    15,413.67x = 21,271.41 × 8,698.92
  4. Step 4: Simplify right side
    15,413.67x = 185,038,293.88
  5. Step 5: Solve for x
    x = 185,038,293.88/15,413.67
  6. Step 6: Final answer
    x = 12,004.82

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Double scale
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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.