Home / 8,608.23-12,920.43-4,228.83

Finding the Fourth Proportional to 8,608.23, 12,920.43 and 4,228.83

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Solution

The fourth proportional to 8,608.23, 12,920.43 and 4,228.83 is: 6,347.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.23 : 12,920.43 = 4,228.83 : x
  2. Step 2: Convert to fraction form
    8,608.23/12,920.43 = 4,228.83/x
  3. Step 3: Cross multiply
    8,608.23x = 12,920.43 × 4,228.83
  4. Step 4: Simplify right side
    8,608.23x = 54,638,302.00
  5. Step 5: Solve for x
    x = 54,638,302.00/8,608.23
  6. Step 6: Final answer
    x = 6,347.22

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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.