Home / 13,194.63-18,210.87-7,889.94

Finding the Fourth Proportional to 13,194.63, 18,210.87 and 7,889.94

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Solution

The fourth proportional to 13,194.63, 18,210.87 and 7,889.94 is: 10,889.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,194.63 : 18,210.87 = 7,889.94 : x
  2. Step 2: Convert to fraction form
    13,194.63/18,210.87 = 7,889.94/x
  3. Step 3: Cross multiply
    13,194.63x = 18,210.87 × 7,889.94
  4. Step 4: Simplify right side
    13,194.63x = 143,682,671.65
  5. Step 5: Solve for x
    x = 143,682,671.65/13,194.63
  6. Step 6: Final answer
    x = 10,889.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.