Home / 18,087.12-24,959.02-10,128

Finding the Fourth Proportional to 18,087.12, 24,959.02 and 10,128

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Solution

The fourth proportional to 18,087.12, 24,959.02 and 10,128 is: 13,975.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.12 : 24,959.02 = 10,128 : x
  2. Step 2: Convert to fraction form
    18,087.12/24,959.02 = 10,128/x
  3. Step 3: Cross multiply
    18,087.12x = 24,959.02 × 10,128
  4. Step 4: Simplify right side
    18,087.12x = 252,784,954.56
  5. Step 5: Solve for x
    x = 252,784,954.56/18,087.12
  6. Step 6: Final answer
    x = 13,975.96

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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.