Home / 12,551.07-18,826.63-3,785.99

Finding the Fourth Proportional to 12,551.07, 18,826.63 and 3,785.99

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Solution

The fourth proportional to 12,551.07, 18,826.63 and 3,785.99 is: 5,678.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.07 : 18,826.63 = 3,785.99 : x
  2. Step 2: Convert to fraction form
    12,551.07/18,826.63 = 3,785.99/x
  3. Step 3: Cross multiply
    12,551.07x = 18,826.63 × 3,785.99
  4. Step 4: Simplify right side
    12,551.07x = 71,277,435.22
  5. Step 5: Solve for x
    x = 71,277,435.22/12,551.07
  6. Step 6: Final answer
    x = 5,678.99

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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.