Home / 8,403.95-11,603.05-6,817.77

Finding the Fourth Proportional to 8,403.95, 11,603.05 and 6,817.77

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Solution

The fourth proportional to 8,403.95, 11,603.05 and 6,817.77 is: 9,413.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.95 : 11,603.05 = 6,817.77 : x
  2. Step 2: Convert to fraction form
    8,403.95/11,603.05 = 6,817.77/x
  3. Step 3: Cross multiply
    8,403.95x = 11,603.05 × 6,817.77
  4. Step 4: Simplify right side
    8,403.95x = 79,106,909.15
  5. Step 5: Solve for x
    x = 79,106,909.15/8,403.95
  6. Step 6: Final answer
    x = 9,413.06

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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.