Home / 9,413.28-12,990.48-6,057.36

Finding the Fourth Proportional to 9,413.28, 12,990.48 and 6,057.36

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Solution

The fourth proportional to 9,413.28, 12,990.48 and 6,057.36 is: 8,359.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,413.28 : 12,990.48 = 6,057.36 : x
  2. Step 2: Convert to fraction form
    9,413.28/12,990.48 = 6,057.36/x
  3. Step 3: Cross multiply
    9,413.28x = 12,990.48 × 6,057.36
  4. Step 4: Simplify right side
    9,413.28x = 78,688,013.93
  5. Step 5: Solve for x
    x = 78,688,013.93/9,413.28
  6. Step 6: Final answer
    x = 8,359.26

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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.