Home / 13,214.09-18,235.70-7,245.41

Finding the Fourth Proportional to 13,214.09, 18,235.70 and 7,245.41

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Solution

The fourth proportional to 13,214.09, 18,235.70 and 7,245.41 is: 9,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.09 : 18,235.70 = 7,245.41 : x
  2. Step 2: Convert to fraction form
    13,214.09/18,235.70 = 7,245.41/x
  3. Step 3: Cross multiply
    13,214.09x = 18,235.70 × 7,245.41
  4. Step 4: Simplify right side
    13,214.09x = 132,124,995.73
  5. Step 5: Solve for x
    x = 132,124,995.73/13,214.09
  6. Step 6: Final answer
    x = 9,998.80

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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.