Home / 13,278.06-19,874.97-7,416.90

Finding the Fourth Proportional to 13,278.06, 19,874.97 and 7,416.90

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Solution

The fourth proportional to 13,278.06, 19,874.97 and 7,416.90 is: 11,101.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.06 : 19,874.97 = 7,416.90 : x
  2. Step 2: Convert to fraction form
    13,278.06/19,874.97 = 7,416.90/x
  3. Step 3: Cross multiply
    13,278.06x = 19,874.97 × 7,416.90
  4. Step 4: Simplify right side
    13,278.06x = 147,410,664.99
  5. Step 5: Solve for x
    x = 147,410,664.99/13,278.06
  6. Step 6: Final answer
    x = 11,101.82

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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.