Home / 12,106.12-18,157.82-3,342.28

Finding the Fourth Proportional to 12,106.12, 18,157.82 and 3,342.28

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Solution

The fourth proportional to 12,106.12, 18,157.82 and 3,342.28 is: 5,013.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,106.12 : 18,157.82 = 3,342.28 : x
  2. Step 2: Convert to fraction form
    12,106.12/18,157.82 = 3,342.28/x
  3. Step 3: Cross multiply
    12,106.12x = 18,157.82 × 3,342.28
  4. Step 4: Simplify right side
    12,106.12x = 60,688,518.63
  5. Step 5: Solve for x
    x = 60,688,518.63/12,106.12
  6. Step 6: Final answer
    x = 5,013.04

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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.