Home / 13,974.71-19,278.32-8,305.44

Finding the Fourth Proportional to 13,974.71, 19,278.32 and 8,305.44

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Solution

The fourth proportional to 13,974.71, 19,278.32 and 8,305.44 is: 11,457.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.71 : 19,278.32 = 8,305.44 : x
  2. Step 2: Convert to fraction form
    13,974.71/19,278.32 = 8,305.44/x
  3. Step 3: Cross multiply
    13,974.71x = 19,278.32 × 8,305.44
  4. Step 4: Simplify right side
    13,974.71x = 160,115,023.12
  5. Step 5: Solve for x
    x = 160,115,023.12/13,974.71
  6. Step 6: Final answer
    x = 11,457.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.