Home / 8,445.80-12,668.96-2,899.07

Finding the Fourth Proportional to 8,445.80, 12,668.96 and 2,899.07

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Solution

The fourth proportional to 8,445.80, 12,668.96 and 2,899.07 is: 4,348.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.80 : 12,668.96 = 2,899.07 : x
  2. Step 2: Convert to fraction form
    8,445.80/12,668.96 = 2,899.07/x
  3. Step 3: Cross multiply
    8,445.80x = 12,668.96 × 2,899.07
  4. Step 4: Simplify right side
    8,445.80x = 36,728,201.87
  5. Step 5: Solve for x
    x = 36,728,201.87/8,445.80
  6. Step 6: Final answer
    x = 4,348.69

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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.