Home / 18,021.31-24,873.86-11,655.02

Finding the Fourth Proportional to 18,021.31, 24,873.86 and 11,655.02

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Solution

The fourth proportional to 18,021.31, 24,873.86 and 11,655.02 is: 16,086.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021.31 : 24,873.86 = 11,655.02 : x
  2. Step 2: Convert to fraction form
    18,021.31/24,873.86 = 11,655.02/x
  3. Step 3: Cross multiply
    18,021.31x = 24,873.86 × 11,655.02
  4. Step 4: Simplify right side
    18,021.31x = 289,905,427.10
  5. Step 5: Solve for x
    x = 289,905,427.10/18,021.31
  6. Step 6: Final answer
    x = 16,086.81

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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.