Home / 12,207.09-18,291.03-7,513.25

Finding the Fourth Proportional to 12,207.09, 18,291.03 and 7,513.25

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Solution

The fourth proportional to 12,207.09, 18,291.03 and 7,513.25 is: 11,257.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.09 : 18,291.03 = 7,513.25 : x
  2. Step 2: Convert to fraction form
    12,207.09/18,291.03 = 7,513.25/x
  3. Step 3: Cross multiply
    12,207.09x = 18,291.03 × 7,513.25
  4. Step 4: Simplify right side
    12,207.09x = 137,424,989.69
  5. Step 5: Solve for x
    x = 137,424,989.69/12,207.09
  6. Step 6: Final answer
    x = 11,257.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.