Home / 12,007.76-18,005.68-4,108.04

Finding the Fourth Proportional to 12,007.76, 18,005.68 and 4,108.04

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Solution

The fourth proportional to 12,007.76, 18,005.68 and 4,108.04 is: 6,160.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,007.76 : 18,005.68 = 4,108.04 : x
  2. Step 2: Convert to fraction form
    12,007.76/18,005.68 = 4,108.04/x
  3. Step 3: Cross multiply
    12,007.76x = 18,005.68 × 4,108.04
  4. Step 4: Simplify right side
    12,007.76x = 73,968,098.49
  5. Step 5: Solve for x
    x = 73,968,098.49/12,007.76
  6. Step 6: Final answer
    x = 6,160.02

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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.