Home / 18,471.36-27,706.83-12,533.55

Finding the Fourth Proportional to 18,471.36, 27,706.83 and 12,533.55

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Solution

The fourth proportional to 18,471.36, 27,706.83 and 12,533.55 is: 18,800.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,471.36 : 27,706.83 = 12,533.55 : x
  2. Step 2: Convert to fraction form
    18,471.36/27,706.83 = 12,533.55/x
  3. Step 3: Cross multiply
    18,471.36x = 27,706.83 × 12,533.55
  4. Step 4: Simplify right side
    18,471.36x = 347,264,939.15
  5. Step 5: Solve for x
    x = 347,264,939.15/18,471.36
  6. Step 6: Final answer
    x = 18,800.18

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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.