Home / 13,200.88-18,214.26-7,894.84

Finding the Fourth Proportional to 13,200.88, 18,214.26 and 7,894.84

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Solution

The fourth proportional to 13,200.88, 18,214.26 and 7,894.84 is: 10,893.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.88 : 18,214.26 = 7,894.84 : x
  2. Step 2: Convert to fraction form
    13,200.88/18,214.26 = 7,894.84/x
  3. Step 3: Cross multiply
    13,200.88x = 18,214.26 × 7,894.84
  4. Step 4: Simplify right side
    13,200.88x = 143,798,668.42
  5. Step 5: Solve for x
    x = 143,798,668.42/13,200.88
  6. Step 6: Final answer
    x = 10,893.11

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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.