Home / 8,001.42-12,003.93-2,807.34

Finding the Fourth Proportional to 8,001.42, 12,003.93 and 2,807.34

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Solution

The fourth proportional to 8,001.42, 12,003.93 and 2,807.34 is: 4,211.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001.42 : 12,003.93 = 2,807.34 : x
  2. Step 2: Convert to fraction form
    8,001.42/12,003.93 = 2,807.34/x
  3. Step 3: Cross multiply
    8,001.42x = 12,003.93 × 2,807.34
  4. Step 4: Simplify right side
    8,001.42x = 33,699,112.85
  5. Step 5: Solve for x
    x = 33,699,112.85/8,001.42
  6. Step 6: Final answer
    x = 4,211.64

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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.