Home / 18,087.84-24,962.16-10,129.60

Finding the Fourth Proportional to 18,087.84, 24,962.16 and 10,129.60

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Solution

The fourth proportional to 18,087.84, 24,962.16 and 10,129.60 is: 13,979.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.84 : 24,962.16 = 10,129.60 : x
  2. Step 2: Convert to fraction form
    18,087.84/24,962.16 = 10,129.60/x
  3. Step 3: Cross multiply
    18,087.84x = 24,962.16 × 10,129.60
  4. Step 4: Simplify right side
    18,087.84x = 252,856,695.94
  5. Step 5: Solve for x
    x = 252,856,695.94/18,087.84
  6. Step 6: Final answer
    x = 13,979.37

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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.