Home / 11,902.98-17,852.91-3,138.59

Finding the Fourth Proportional to 11,902.98, 17,852.91 and 3,138.59

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Solution

The fourth proportional to 11,902.98, 17,852.91 and 3,138.59 is: 4,707.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,902.98 : 17,852.91 = 3,138.59 : x
  2. Step 2: Convert to fraction form
    11,902.98/17,852.91 = 3,138.59/x
  3. Step 3: Cross multiply
    11,902.98x = 17,852.91 × 3,138.59
  4. Step 4: Simplify right side
    11,902.98x = 56,032,875.53
  5. Step 5: Solve for x
    x = 56,032,875.53/11,902.98
  6. Step 6: Final answer
    x = 4,707.47

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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.