Home / 8,284.42-11,417.20-7,021.44

Finding the Fourth Proportional to 8,284.42, 11,417.20 and 7,021.44

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Solution

The fourth proportional to 8,284.42, 11,417.20 and 7,021.44 is: 9,676.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,284.42 : 11,417.20 = 7,021.44 : x
  2. Step 2: Convert to fraction form
    8,284.42/11,417.20 = 7,021.44/x
  3. Step 3: Cross multiply
    8,284.42x = 11,417.20 × 7,021.44
  4. Step 4: Simplify right side
    8,284.42x = 80,165,184.77
  5. Step 5: Solve for x
    x = 80,165,184.77/8,284.42
  6. Step 6: Final answer
    x = 9,676.62

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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.