Home / 12,395,128.88-18,535,616.52-11,790,467.12

Finding the Fourth Proportional to 12,395,128.88, 18,535,616.52 and 11,790,467.12

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Solution

The fourth proportional to 12,395,128.88, 18,535,616.52 and 11,790,467.12 is: 17,631,408.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,395,128.88 : 18,535,616.52 = 11,790,467.12 : x
  2. Step 2: Convert to fraction form
    12,395,128.88/18,535,616.52 = 11,790,467.12/x
  3. Step 3: Cross multiply
    12,395,128.88x = 18,535,616.52 × 11,790,467.12
  4. Step 4: Simplify right side
    12,395,128.88x = 218,543,577,127,988.81
  5. Step 5: Solve for x
    x = 218,543,577,127,988.81/12,395,128.88
  6. Step 6: Final answer
    x = 17,631,408.21

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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.