Home / 18,721.11-28,093.74-12,056.91

Finding the Fourth Proportional to 18,721.11, 28,093.74 and 12,056.91

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Solution

The fourth proportional to 18,721.11, 28,093.74 and 12,056.91 is: 18,093.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.11 : 28,093.74 = 12,056.91 : x
  2. Step 2: Convert to fraction form
    18,721.11/28,093.74 = 12,056.91/x
  3. Step 3: Cross multiply
    18,721.11x = 28,093.74 × 12,056.91
  4. Step 4: Simplify right side
    18,721.11x = 338,723,694.74
  5. Step 5: Solve for x
    x = 338,723,694.74/18,721.11
  6. Step 6: Final answer
    x = 18,093.14

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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.