Home / 13,245.85-18,279.03-7,277.23

Finding the Fourth Proportional to 13,245.85, 18,279.03 and 7,277.23

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Solution

The fourth proportional to 13,245.85, 18,279.03 and 7,277.23 is: 10,042.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.85 : 18,279.03 = 7,277.23 : x
  2. Step 2: Convert to fraction form
    13,245.85/18,279.03 = 7,277.23/x
  3. Step 3: Cross multiply
    13,245.85x = 18,279.03 × 7,277.23
  4. Step 4: Simplify right side
    13,245.85x = 133,020,705.49
  5. Step 5: Solve for x
    x = 133,020,705.49/13,245.85
  6. Step 6: Final answer
    x = 10,042.44

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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.