Home / 8,587.21-12,883.62-3,661.03

Finding the Fourth Proportional to 8,587.21, 12,883.62 and 3,661.03

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Solution

The fourth proportional to 8,587.21, 12,883.62 and 3,661.03 is: 5,492.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.21 : 12,883.62 = 3,661.03 : x
  2. Step 2: Convert to fraction form
    8,587.21/12,883.62 = 3,661.03/x
  3. Step 3: Cross multiply
    8,587.21x = 12,883.62 × 3,661.03
  4. Step 4: Simplify right side
    8,587.21x = 47,167,319.33
  5. Step 5: Solve for x
    x = 47,167,319.33/8,587.21
  6. Step 6: Final answer
    x = 5,492.74

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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.