Home / 18,087.44-24,962.80-10,128.12

Finding the Fourth Proportional to 18,087.44, 24,962.80 and 10,128.12

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Solution

The fourth proportional to 18,087.44, 24,962.80 and 10,128.12 is: 13,978.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.44 : 24,962.80 = 10,128.12 : x
  2. Step 2: Convert to fraction form
    18,087.44/24,962.80 = 10,128.12/x
  3. Step 3: Cross multiply
    18,087.44x = 24,962.80 × 10,128.12
  4. Step 4: Simplify right side
    18,087.44x = 252,826,233.94
  5. Step 5: Solve for x
    x = 252,826,233.94/18,087.44
  6. Step 6: Final answer
    x = 13,978.00

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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.