Home / 7,855.14-11,778.26-2,588.74

Finding the Fourth Proportional to 7,855.14, 11,778.26 and 2,588.74

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Solution

The fourth proportional to 7,855.14, 11,778.26 and 2,588.74 is: 3,881.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.14 : 11,778.26 = 2,588.74 : x
  2. Step 2: Convert to fraction form
    7,855.14/11,778.26 = 2,588.74/x
  3. Step 3: Cross multiply
    7,855.14x = 11,778.26 × 2,588.74
  4. Step 4: Simplify right side
    7,855.14x = 30,490,852.79
  5. Step 5: Solve for x
    x = 30,490,852.79/7,855.14
  6. Step 6: Final answer
    x = 3,881.64

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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.