Home / 12,551.72-18,826.14-3,318.44

Finding the Fourth Proportional to 12,551.72, 18,826.14 and 3,318.44

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Solution

The fourth proportional to 12,551.72, 18,826.14 and 3,318.44 is: 4,977.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.72 : 18,826.14 = 3,318.44 : x
  2. Step 2: Convert to fraction form
    12,551.72/18,826.14 = 3,318.44/x
  3. Step 3: Cross multiply
    12,551.72x = 18,826.14 × 3,318.44
  4. Step 4: Simplify right side
    12,551.72x = 62,473,416.02
  5. Step 5: Solve for x
    x = 62,473,416.02/12,551.72
  6. Step 6: Final answer
    x = 4,977.28

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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.