Home / 13,214.14-18,235.50-7,245.68

Finding the Fourth Proportional to 13,214.14, 18,235.50 and 7,245.68

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Solution

The fourth proportional to 13,214.14, 18,235.50 and 7,245.68 is: 9,999.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.14 : 18,235.50 = 7,245.68 : x
  2. Step 2: Convert to fraction form
    13,214.14/18,235.50 = 7,245.68/x
  3. Step 3: Cross multiply
    13,214.14x = 18,235.50 × 7,245.68
  4. Step 4: Simplify right side
    13,214.14x = 132,128,597.64
  5. Step 5: Solve for x
    x = 132,128,597.64/13,214.14
  6. Step 6: Final answer
    x = 9,999.03

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Similar ratio
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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.