Home / 8,404.36-11,590.39-6,903.43

Finding the Fourth Proportional to 8,404.36, 11,590.39 and 6,903.43

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Solution

The fourth proportional to 8,404.36, 11,590.39 and 6,903.43 is: 9,520.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,404.36 : 11,590.39 = 6,903.43 : x
  2. Step 2: Convert to fraction form
    8,404.36/11,590.39 = 6,903.43/x
  3. Step 3: Cross multiply
    8,404.36x = 11,590.39 × 6,903.43
  4. Step 4: Simplify right side
    8,404.36x = 80,013,425.69
  5. Step 5: Solve for x
    x = 80,013,425.69/8,404.36
  6. Step 6: Final answer
    x = 9,520.47

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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.