Home / 8,421.44-12,633.45-2,873.48

Finding the Fourth Proportional to 8,421.44, 12,633.45 and 2,873.48

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Solution

The fourth proportional to 8,421.44, 12,633.45 and 2,873.48 is: 4,310.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421.44 : 12,633.45 = 2,873.48 : x
  2. Step 2: Convert to fraction form
    8,421.44/12,633.45 = 2,873.48/x
  3. Step 3: Cross multiply
    8,421.44x = 12,633.45 × 2,873.48
  4. Step 4: Simplify right side
    8,421.44x = 36,301,979.19
  5. Step 5: Solve for x
    x = 36,301,979.19/8,421.44
  6. Step 6: Final answer
    x = 4,310.66

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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.