Home / 8,455.02-12,678.89-3,257.25

Finding the Fourth Proportional to 8,455.02, 12,678.89 and 3,257.25

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Solution

The fourth proportional to 8,455.02, 12,678.89 and 3,257.25 is: 4,884.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.02 : 12,678.89 = 3,257.25 : x
  2. Step 2: Convert to fraction form
    8,455.02/12,678.89 = 3,257.25/x
  3. Step 3: Cross multiply
    8,455.02x = 12,678.89 × 3,257.25
  4. Step 4: Simplify right side
    8,455.02x = 41,298,298.17
  5. Step 5: Solve for x
    x = 41,298,298.17/8,455.02
  6. Step 6: Final answer
    x = 4,884.47

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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.