Home / 12,180.16-16,836.96-10,866.88

Finding the Fourth Proportional to 12,180.16, 16,836.96 and 10,866.88

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Solution

The fourth proportional to 12,180.16, 16,836.96 and 10,866.88 is: 15,021.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.16 : 16,836.96 = 10,866.88 : x
  2. Step 2: Convert to fraction form
    12,180.16/16,836.96 = 10,866.88/x
  3. Step 3: Cross multiply
    12,180.16x = 16,836.96 × 10,866.88
  4. Step 4: Simplify right side
    12,180.16x = 182,965,223.88
  5. Step 5: Solve for x
    x = 182,965,223.88/12,180.16
  6. Step 6: Final answer
    x = 15,021.58

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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.