Home / 8,431.26-12,648.69-2,587.41

Finding the Fourth Proportional to 8,431.26, 12,648.69 and 2,587.41

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Solution

The fourth proportional to 8,431.26, 12,648.69 and 2,587.41 is: 3,881.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.26 : 12,648.69 = 2,587.41 : x
  2. Step 2: Convert to fraction form
    8,431.26/12,648.69 = 2,587.41/x
  3. Step 3: Cross multiply
    8,431.26x = 12,648.69 × 2,587.41
  4. Step 4: Simplify right side
    8,431.26x = 32,727,346.99
  5. Step 5: Solve for x
    x = 32,727,346.99/8,431.26
  6. Step 6: Final answer
    x = 3,881.67

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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.