Home / 18,087.41-27,172.70-12,762.84

Finding the Fourth Proportional to 18,087.41, 27,172.70 and 12,762.84

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Solution

The fourth proportional to 18,087.41, 27,172.70 and 12,762.84 is: 19,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.41 : 27,172.70 = 12,762.84 : x
  2. Step 2: Convert to fraction form
    18,087.41/27,172.70 = 12,762.84/x
  3. Step 3: Cross multiply
    18,087.41x = 27,172.70 × 12,762.84
  4. Step 4: Simplify right side
    18,087.41x = 346,800,822.47
  5. Step 5: Solve for x
    x = 346,800,822.47/18,087.41
  6. Step 6: Final answer
    x = 19,173.60

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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.