Home / 8,431.12-12,646.14-2,587.24

Finding the Fourth Proportional to 8,431.12, 12,646.14 and 2,587.24

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Solution

The fourth proportional to 8,431.12, 12,646.14 and 2,587.24 is: 3,880.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.12 : 12,646.14 = 2,587.24 : x
  2. Step 2: Convert to fraction form
    8,431.12/12,646.14 = 2,587.24/x
  3. Step 3: Cross multiply
    8,431.12x = 12,646.14 × 2,587.24
  4. Step 4: Simplify right side
    8,431.12x = 32,718,599.25
  5. Step 5: Solve for x
    x = 32,718,599.25/8,431.12
  6. Step 6: Final answer
    x = 3,880.69

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Similar ratio
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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.