Home / 13,161.51-18,163.17-7,193.56

Finding the Fourth Proportional to 13,161.51, 18,163.17 and 7,193.56

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Solution

The fourth proportional to 13,161.51, 18,163.17 and 7,193.56 is: 9,927.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.51 : 18,163.17 = 7,193.56 : x
  2. Step 2: Convert to fraction form
    13,161.51/18,163.17 = 7,193.56/x
  3. Step 3: Cross multiply
    13,161.51x = 18,163.17 × 7,193.56
  4. Step 4: Simplify right side
    13,161.51x = 130,657,826.21
  5. Step 5: Solve for x
    x = 130,657,826.21/13,161.51
  6. Step 6: Final answer
    x = 9,927.27

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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.