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Finding the Fourth Proportional to 8,368.65, 12,554.51 and 6,822.20

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Solution

The fourth proportional to 8,368.65, 12,554.51 and 6,822.20 is: 10,234.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,368.65 : 12,554.51 = 6,822.20 : x
  2. Step 2: Convert to fraction form
    8,368.65/12,554.51 = 6,822.20/x
  3. Step 3: Cross multiply
    8,368.65x = 12,554.51 × 6,822.20
  4. Step 4: Simplify right side
    8,368.65x = 85,649,281.24
  5. Step 5: Solve for x
    x = 85,649,281.24/8,368.65
  6. Step 6: Final answer
    x = 10,234.54

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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.