Home / 13,253.04-18,284.49-8,212.05

Finding the Fourth Proportional to 13,253.04, 18,284.49 and 8,212.05

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Solution

The fourth proportional to 13,253.04, 18,284.49 and 8,212.05 is: 11,329.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.04 : 18,284.49 = 8,212.05 : x
  2. Step 2: Convert to fraction form
    13,253.04/18,284.49 = 8,212.05/x
  3. Step 3: Cross multiply
    13,253.04x = 18,284.49 × 8,212.05
  4. Step 4: Simplify right side
    13,253.04x = 150,153,146.10
  5. Step 5: Solve for x
    x = 150,153,146.10/13,253.04
  6. Step 6: Final answer
    x = 11,329.71

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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.