Home / 8,423.81-11,625.09-4,647.23

Finding the Fourth Proportional to 8,423.81, 11,625.09 and 4,647.23

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Solution

The fourth proportional to 8,423.81, 11,625.09 and 4,647.23 is: 6,413.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.81 : 11,625.09 = 4,647.23 : x
  2. Step 2: Convert to fraction form
    8,423.81/11,625.09 = 4,647.23/x
  3. Step 3: Cross multiply
    8,423.81x = 11,625.09 × 4,647.23
  4. Step 4: Simplify right side
    8,423.81x = 54,024,467.00
  5. Step 5: Solve for x
    x = 54,024,467.00/8,423.81
  6. Step 6: Final answer
    x = 6,413.31

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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.