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Finding the Fourth Proportional to 8,409.01, 12,613.40 and 2,866.22

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Solution

The fourth proportional to 8,409.01, 12,613.40 and 2,866.22 is: 4,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.01 : 12,613.40 = 2,866.22 : x
  2. Step 2: Convert to fraction form
    8,409.01/12,613.40 = 2,866.22/x
  3. Step 3: Cross multiply
    8,409.01x = 12,613.40 × 2,866.22
  4. Step 4: Simplify right side
    8,409.01x = 36,152,779.35
  5. Step 5: Solve for x
    x = 36,152,779.35/8,409.01
  6. Step 6: Final answer
    x = 4,299.29

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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.