Home / 8,285.28-12,413.34-7,381.32

Finding the Fourth Proportional to 8,285.28, 12,413.34 and 7,381.32

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Solution

The fourth proportional to 8,285.28, 12,413.34 and 7,381.32 is: 11,058.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.28 : 12,413.34 = 7,381.32 : x
  2. Step 2: Convert to fraction form
    8,285.28/12,413.34 = 7,381.32/x
  3. Step 3: Cross multiply
    8,285.28x = 12,413.34 × 7,381.32
  4. Step 4: Simplify right side
    8,285.28x = 91,626,834.81
  5. Step 5: Solve for x
    x = 91,626,834.81/8,285.28
  6. Step 6: Final answer
    x = 11,058.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.