Home / 9,413.83-12,991.68-5,435.20

Finding the Fourth Proportional to 9,413.83, 12,991.68 and 5,435.20

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Solution

The fourth proportional to 9,413.83, 12,991.68 and 5,435.20 is: 7,500.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,413.83 : 12,991.68 = 5,435.20 : x
  2. Step 2: Convert to fraction form
    9,413.83/12,991.68 = 5,435.20/x
  3. Step 3: Cross multiply
    9,413.83x = 12,991.68 × 5,435.20
  4. Step 4: Simplify right side
    9,413.83x = 70,612,379.14
  5. Step 5: Solve for x
    x = 70,612,379.14/9,413.83
  6. Step 6: Final answer
    x = 7,500.92

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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.