Home / 12,172.47-18,261.44-3,852.98

Finding the Fourth Proportional to 12,172.47, 18,261.44 and 3,852.98

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Solution

The fourth proportional to 12,172.47, 18,261.44 and 3,852.98 is: 5,780.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.47 : 18,261.44 = 3,852.98 : x
  2. Step 2: Convert to fraction form
    12,172.47/18,261.44 = 3,852.98/x
  3. Step 3: Cross multiply
    12,172.47x = 18,261.44 × 3,852.98
  4. Step 4: Simplify right side
    12,172.47x = 70,360,963.09
  5. Step 5: Solve for x
    x = 70,360,963.09/12,172.47
  6. Step 6: Final answer
    x = 5,780.34

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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.