Home / 16,127.87-24,119.79-12,128.28

Finding the Fourth Proportional to 16,127.87, 24,119.79 and 12,128.28

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Solution

The fourth proportional to 16,127.87, 24,119.79 and 12,128.28 is: 18,138.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,127.87 : 24,119.79 = 12,128.28 : x
  2. Step 2: Convert to fraction form
    16,127.87/24,119.79 = 12,128.28/x
  3. Step 3: Cross multiply
    16,127.87x = 24,119.79 × 12,128.28
  4. Step 4: Simplify right side
    16,127.87x = 292,531,566.66
  5. Step 5: Solve for x
    x = 292,531,566.66/16,127.87
  6. Step 6: Final answer
    x = 18,138.27

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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.