Home / 8,458.92-12,685.14-4,992.12

Finding the Fourth Proportional to 8,458.92, 12,685.14 and 4,992.12

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Solution

The fourth proportional to 8,458.92, 12,685.14 and 4,992.12 is: 7,486.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.92 : 12,685.14 = 4,992.12 : x
  2. Step 2: Convert to fraction form
    8,458.92/12,685.14 = 4,992.12/x
  3. Step 3: Cross multiply
    8,458.92x = 12,685.14 × 4,992.12
  4. Step 4: Simplify right side
    8,458.92x = 63,325,741.10
  5. Step 5: Solve for x
    x = 63,325,741.10/8,458.92
  6. Step 6: Final answer
    x = 7,486.27

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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.