Home / 12,217.45-18,302.60-7,291.03

Finding the Fourth Proportional to 12,217.45, 18,302.60 and 7,291.03

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Solution

The fourth proportional to 12,217.45, 18,302.60 and 7,291.03 is: 10,922.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.45 : 18,302.60 = 7,291.03 : x
  2. Step 2: Convert to fraction form
    12,217.45/18,302.60 = 7,291.03/x
  3. Step 3: Cross multiply
    12,217.45x = 18,302.60 × 7,291.03
  4. Step 4: Simplify right side
    12,217.45x = 133,444,769.22
  5. Step 5: Solve for x
    x = 133,444,769.22/12,217.45
  6. Step 6: Final answer
    x = 10,922.47

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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.