Home / 8,089.07-12,135.69-4,390.34

Finding the Fourth Proportional to 8,089.07, 12,135.69 and 4,390.34

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Solution

The fourth proportional to 8,089.07, 12,135.69 and 4,390.34 is: 6,586.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,089.07 : 12,135.69 = 4,390.34 : x
  2. Step 2: Convert to fraction form
    8,089.07/12,135.69 = 4,390.34/x
  3. Step 3: Cross multiply
    8,089.07x = 12,135.69 × 4,390.34
  4. Step 4: Simplify right side
    8,089.07x = 53,279,744.56
  5. Step 5: Solve for x
    x = 53,279,744.56/8,089.07
  6. Step 6: Final answer
    x = 6,586.64

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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.