Home / 18,719.79-28,087.33-12,059.77

Finding the Fourth Proportional to 18,719.79, 28,087.33 and 12,059.77

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Solution

The fourth proportional to 18,719.79, 28,087.33 and 12,059.77 is: 18,094.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719.79 : 28,087.33 = 12,059.77 : x
  2. Step 2: Convert to fraction form
    18,719.79/28,087.33 = 12,059.77/x
  3. Step 3: Cross multiply
    18,719.79x = 28,087.33 × 12,059.77
  4. Step 4: Simplify right side
    18,719.79x = 338,726,639.35
  5. Step 5: Solve for x
    x = 338,726,639.35/18,719.79
  6. Step 6: Final answer
    x = 18,094.57

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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.