Home / 12,152.88-18,229.32-4,359.84

Finding the Fourth Proportional to 12,152.88, 18,229.32 and 4,359.84

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Solution

The fourth proportional to 12,152.88, 18,229.32 and 4,359.84 is: 6,539.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.88 : 18,229.32 = 4,359.84 : x
  2. Step 2: Convert to fraction form
    12,152.88/18,229.32 = 4,359.84/x
  3. Step 3: Cross multiply
    12,152.88x = 18,229.32 × 4,359.84
  4. Step 4: Simplify right side
    12,152.88x = 79,476,918.51
  5. Step 5: Solve for x
    x = 79,476,918.51/12,152.88
  6. Step 6: Final answer
    x = 6,539.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.