Home / 7,413.28-11,126.40-4,296.40

Finding the Fourth Proportional to 7,413.28, 11,126.40 and 4,296.40

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Solution

The fourth proportional to 7,413.28, 11,126.40 and 4,296.40 is: 6,448.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.28 : 11,126.40 = 4,296.40 : x
  2. Step 2: Convert to fraction form
    7,413.28/11,126.40 = 4,296.40/x
  3. Step 3: Cross multiply
    7,413.28x = 11,126.40 × 4,296.40
  4. Step 4: Simplify right side
    7,413.28x = 47,803,464.96
  5. Step 5: Solve for x
    x = 47,803,464.96/7,413.28
  6. Step 6: Final answer
    x = 6,448.36

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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.