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Finding the Fourth Proportional to 36,984, 55,476 and 12,360

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Solution

The fourth proportional to 36,984, 55,476 and 12,360 is: 18,540

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,984 : 55,476 = 12,360 : x
  2. Step 2: Convert to fraction form
    36,984/55,476 = 12,360/x
  3. Step 3: Cross multiply
    36,984x = 55,476 × 12,360
  4. Step 4: Simplify right side
    36,984x = 685,683,360
  5. Step 5: Solve for x
    x = 685,683,360/36,984
  6. Step 6: Final answer
    x = 18,540

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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.