Home / 13,223.79-18,249.08-7,255.46

Finding the Fourth Proportional to 13,223.79, 18,249.08 and 7,255.46

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Solution

The fourth proportional to 13,223.79, 18,249.08 and 7,255.46 is: 10,012.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.79 : 18,249.08 = 7,255.46 : x
  2. Step 2: Convert to fraction form
    13,223.79/18,249.08 = 7,255.46/x
  3. Step 3: Cross multiply
    13,223.79x = 18,249.08 × 7,255.46
  4. Step 4: Simplify right side
    13,223.79x = 132,405,342.45
  5. Step 5: Solve for x
    x = 132,405,342.45/13,223.79
  6. Step 6: Final answer
    x = 10,012.66

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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.