Home / 12,652.85-18,979.23-4,856.20

Finding the Fourth Proportional to 12,652.85, 18,979.23 and 4,856.20

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Solution

The fourth proportional to 12,652.85, 18,979.23 and 4,856.20 is: 7,284.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,652.85 : 18,979.23 = 4,856.20 : x
  2. Step 2: Convert to fraction form
    12,652.85/18,979.23 = 4,856.20/x
  3. Step 3: Cross multiply
    12,652.85x = 18,979.23 × 4,856.20
  4. Step 4: Simplify right side
    12,652.85x = 92,166,936.73
  5. Step 5: Solve for x
    x = 92,166,936.73/12,652.85
  6. Step 6: Final answer
    x = 7,284.28

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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.