Home / 14,108.59-19,469.16-8,142.16

Finding the Fourth Proportional to 14,108.59, 19,469.16 and 8,142.16

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Solution

The fourth proportional to 14,108.59, 19,469.16 and 8,142.16 is: 11,235.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.59 : 19,469.16 = 8,142.16 : x
  2. Step 2: Convert to fraction form
    14,108.59/19,469.16 = 8,142.16/x
  3. Step 3: Cross multiply
    14,108.59x = 19,469.16 × 8,142.16
  4. Step 4: Simplify right side
    14,108.59x = 158,521,015.79
  5. Step 5: Solve for x
    x = 158,521,015.79/14,108.59
  6. Step 6: Final answer
    x = 11,235.78

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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.