Home / 12,167.49-18,272.07-7,515.03

Finding the Fourth Proportional to 12,167.49, 18,272.07 and 7,515.03

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Solution

The fourth proportional to 12,167.49, 18,272.07 and 7,515.03 is: 11,285.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.49 : 18,272.07 = 7,515.03 : x
  2. Step 2: Convert to fraction form
    12,167.49/18,272.07 = 7,515.03/x
  3. Step 3: Cross multiply
    12,167.49x = 18,272.07 × 7,515.03
  4. Step 4: Simplify right side
    12,167.49x = 137,315,154.21
  5. Step 5: Solve for x
    x = 137,315,154.21/12,167.49
  6. Step 6: Final answer
    x = 11,285.41

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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.