Home / 12,908.35-19,364.54-5,512.85

Finding the Fourth Proportional to 12,908.35, 19,364.54 and 5,512.85

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Solution

The fourth proportional to 12,908.35, 19,364.54 and 5,512.85 is: 8,270.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,908.35 : 19,364.54 = 5,512.85 : x
  2. Step 2: Convert to fraction form
    12,908.35/19,364.54 = 5,512.85/x
  3. Step 3: Cross multiply
    12,908.35x = 19,364.54 × 5,512.85
  4. Step 4: Simplify right side
    12,908.35x = 106,753,804.34
  5. Step 5: Solve for x
    x = 106,753,804.34/12,908.35
  6. Step 6: Final answer
    x = 8,270.14

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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.