Home / 12,734.20-19,106.70-8,057.80

Finding the Fourth Proportional to 12,734.20, 19,106.70 and 8,057.80

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Solution

The fourth proportional to 12,734.20, 19,106.70 and 8,057.80 is: 12,090.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,734.20 : 19,106.70 = 8,057.80 : x
  2. Step 2: Convert to fraction form
    12,734.20/19,106.70 = 8,057.80/x
  3. Step 3: Cross multiply
    12,734.20x = 19,106.70 × 8,057.80
  4. Step 4: Simplify right side
    12,734.20x = 153,957,967.26
  5. Step 5: Solve for x
    x = 153,957,967.26/12,734.20
  6. Step 6: Final answer
    x = 12,090.12

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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.