Home / 13,620.08-18,814.20-10,673.12

Finding the Fourth Proportional to 13,620.08, 18,814.20 and 10,673.12

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Solution

The fourth proportional to 13,620.08, 18,814.20 and 10,673.12 is: 14,743.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620.08 : 18,814.20 = 10,673.12 : x
  2. Step 2: Convert to fraction form
    13,620.08/18,814.20 = 10,673.12/x
  3. Step 3: Cross multiply
    13,620.08x = 18,814.20 × 10,673.12
  4. Step 4: Simplify right side
    13,620.08x = 200,806,214.30
  5. Step 5: Solve for x
    x = 200,806,214.30/13,620.08
  6. Step 6: Final answer
    x = 14,743.39

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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.