Home / 12,465.45-17,202.87-7,161.98

Finding the Fourth Proportional to 12,465.45, 17,202.87 and 7,161.98

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Solution

The fourth proportional to 12,465.45, 17,202.87 and 7,161.98 is: 9,883.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.45 : 17,202.87 = 7,161.98 : x
  2. Step 2: Convert to fraction form
    12,465.45/17,202.87 = 7,161.98/x
  3. Step 3: Cross multiply
    12,465.45x = 17,202.87 × 7,161.98
  4. Step 4: Simplify right side
    12,465.45x = 123,206,524.87
  5. Step 5: Solve for x
    x = 123,206,524.87/12,465.45
  6. Step 6: Final answer
    x = 9,883.84

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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.