Home / 13,184.17-18,163.64-9,198.36

Finding the Fourth Proportional to 13,184.17, 18,163.64 and 9,198.36

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Solution

The fourth proportional to 13,184.17, 18,163.64 and 9,198.36 is: 12,672.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,184.17 : 18,163.64 = 9,198.36 : x
  2. Step 2: Convert to fraction form
    13,184.17/18,163.64 = 9,198.36/x
  3. Step 3: Cross multiply
    13,184.17x = 18,163.64 × 9,198.36
  4. Step 4: Simplify right side
    13,184.17x = 167,075,722.63
  5. Step 5: Solve for x
    x = 167,075,722.63/13,184.17
  6. Step 6: Final answer
    x = 12,672.45

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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.