Home / 8,862.33-12,230.88-6,620.31

Finding the Fourth Proportional to 8,862.33, 12,230.88 and 6,620.31

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Solution

The fourth proportional to 8,862.33, 12,230.88 and 6,620.31 is: 9,136.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.33 : 12,230.88 = 6,620.31 : x
  2. Step 2: Convert to fraction form
    8,862.33/12,230.88 = 6,620.31/x
  3. Step 3: Cross multiply
    8,862.33x = 12,230.88 × 6,620.31
  4. Step 4: Simplify right side
    8,862.33x = 80,972,192.35
  5. Step 5: Solve for x
    x = 80,972,192.35/8,862.33
  6. Step 6: Final answer
    x = 9,136.67

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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.