Home / 8,401.59-11,590.32-5,418.39

Finding the Fourth Proportional to 8,401.59, 11,590.32 and 5,418.39

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Solution

The fourth proportional to 8,401.59, 11,590.32 and 5,418.39 is: 7,474.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,401.59 : 11,590.32 = 5,418.39 : x
  2. Step 2: Convert to fraction form
    8,401.59/11,590.32 = 5,418.39/x
  3. Step 3: Cross multiply
    8,401.59x = 11,590.32 × 5,418.39
  4. Step 4: Simplify right side
    8,401.59x = 62,800,873.98
  5. Step 5: Solve for x
    x = 62,800,873.98/8,401.59
  6. Step 6: Final answer
    x = 7,474.88

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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.