Home / 8,215.43-12,324.49-4,519.40

Finding the Fourth Proportional to 8,215.43, 12,324.49 and 4,519.40

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Solution

The fourth proportional to 8,215.43, 12,324.49 and 4,519.40 is: 6,779.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.43 : 12,324.49 = 4,519.40 : x
  2. Step 2: Convert to fraction form
    8,215.43/12,324.49 = 4,519.40/x
  3. Step 3: Cross multiply
    8,215.43x = 12,324.49 × 4,519.40
  4. Step 4: Simplify right side
    8,215.43x = 55,699,227.19
  5. Step 5: Solve for x
    x = 55,699,227.19/8,215.43
  6. Step 6: Final answer
    x = 6,779.84

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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.