Home / 18,087.32-24,960.21-10,129.48

Finding the Fourth Proportional to 18,087.32, 24,960.21 and 10,129.48

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Solution

The fourth proportional to 18,087.32, 24,960.21 and 10,129.48 is: 13,978.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.32 : 24,960.21 = 10,129.48 : x
  2. Step 2: Convert to fraction form
    18,087.32/24,960.21 = 10,129.48/x
  3. Step 3: Cross multiply
    18,087.32x = 24,960.21 × 10,129.48
  4. Step 4: Simplify right side
    18,087.32x = 252,833,947.99
  5. Step 5: Solve for x
    x = 252,833,947.99/18,087.32
  6. Step 6: Final answer
    x = 13,978.52

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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.