Home / 16,128.79-24,192.97-7,809.55

Finding the Fourth Proportional to 16,128.79, 24,192.97 and 7,809.55

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Solution

The fourth proportional to 16,128.79, 24,192.97 and 7,809.55 is: 11,714.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,128.79 : 24,192.97 = 7,809.55 : x
  2. Step 2: Convert to fraction form
    16,128.79/24,192.97 = 7,809.55/x
  3. Step 3: Cross multiply
    16,128.79x = 24,192.97 × 7,809.55
  4. Step 4: Simplify right side
    16,128.79x = 188,936,128.86
  5. Step 5: Solve for x
    x = 188,936,128.86/16,128.79
  6. Step 6: Final answer
    x = 11,714.22

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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.