Home / 12,322.14-18,485.13-7,390.62

Finding the Fourth Proportional to 12,322.14, 18,485.13 and 7,390.62

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Solution

The fourth proportional to 12,322.14, 18,485.13 and 7,390.62 is: 11,087.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,322.14 : 18,485.13 = 7,390.62 : x
  2. Step 2: Convert to fraction form
    12,322.14/18,485.13 = 7,390.62/x
  3. Step 3: Cross multiply
    12,322.14x = 18,485.13 × 7,390.62
  4. Step 4: Simplify right side
    12,322.14x = 136,616,571.48
  5. Step 5: Solve for x
    x = 136,616,571.48/12,322.14
  6. Step 6: Final answer
    x = 11,087.08

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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.