Home / 13,163.23-18,153.50-10,921.56

Finding the Fourth Proportional to 13,163.23, 18,153.50 and 10,921.56

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Solution

The fourth proportional to 13,163.23, 18,153.50 and 10,921.56 is: 15,062.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.23 : 18,153.50 = 10,921.56 : x
  2. Step 2: Convert to fraction form
    13,163.23/18,153.50 = 10,921.56/x
  3. Step 3: Cross multiply
    13,163.23x = 18,153.50 × 10,921.56
  4. Step 4: Simplify right side
    13,163.23x = 198,264,539.46
  5. Step 5: Solve for x
    x = 198,264,539.46/13,163.23
  6. Step 6: Final answer
    x = 15,062.00

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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.