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Finding the Fourth Proportional to 12,670.16, 19,004.92 and 3,435.92

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Solution

The fourth proportional to 12,670.16, 19,004.92 and 3,435.92 is: 5,153.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,670.16 : 19,004.92 = 3,435.92 : x
  2. Step 2: Convert to fraction form
    12,670.16/19,004.92 = 3,435.92/x
  3. Step 3: Cross multiply
    12,670.16x = 19,004.92 × 3,435.92
  4. Step 4: Simplify right side
    12,670.16x = 65,299,384.73
  5. Step 5: Solve for x
    x = 65,299,384.73/12,670.16
  6. Step 6: Final answer
    x = 5,153.79

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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.