Home / 8,370.21-12,554.91-3,106.25

Finding the Fourth Proportional to 8,370.21, 12,554.91 and 3,106.25

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Solution

The fourth proportional to 8,370.21, 12,554.91 and 3,106.25 is: 4,659.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.21 : 12,554.91 = 3,106.25 : x
  2. Step 2: Convert to fraction form
    8,370.21/12,554.91 = 3,106.25/x
  3. Step 3: Cross multiply
    8,370.21x = 12,554.91 × 3,106.25
  4. Step 4: Simplify right side
    8,370.21x = 38,998,682.23
  5. Step 5: Solve for x
    x = 38,998,682.23/8,370.21
  6. Step 6: Final answer
    x = 4,659.22

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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.