Home / 11,106.19-16,661.92-3,315.20

Finding the Fourth Proportional to 11,106.19, 16,661.92 and 3,315.20

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Solution

The fourth proportional to 11,106.19, 16,661.92 and 3,315.20 is: 4,973.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.19 : 16,661.92 = 3,315.20 : x
  2. Step 2: Convert to fraction form
    11,106.19/16,661.92 = 3,315.20/x
  3. Step 3: Cross multiply
    11,106.19x = 16,661.92 × 3,315.20
  4. Step 4: Simplify right side
    11,106.19x = 55,237,630.55
  5. Step 5: Solve for x
    x = 55,237,630.55/11,106.19
  6. Step 6: Final answer
    x = 4,973.59

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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.