Home / 26,460.72-39,671.64-12,619.44

Finding the Fourth Proportional to 26,460.72, 39,671.64 and 12,619.44

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Solution

The fourth proportional to 26,460.72, 39,671.64 and 12,619.44 is: 18,919.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,460.72 : 39,671.64 = 12,619.44 : x
  2. Step 2: Convert to fraction form
    26,460.72/39,671.64 = 12,619.44/x
  3. Step 3: Cross multiply
    26,460.72x = 39,671.64 × 12,619.44
  4. Step 4: Simplify right side
    26,460.72x = 500,633,880.68
  5. Step 5: Solve for x
    x = 500,633,880.68/26,460.72
  6. Step 6: Final answer
    x = 18,919.89

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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.