Home / 8,351.46-12,529.89-2,807.34

Finding the Fourth Proportional to 8,351.46, 12,529.89 and 2,807.34

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Solution

The fourth proportional to 8,351.46, 12,529.89 and 2,807.34 is: 4,211.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.46 : 12,529.89 = 2,807.34 : x
  2. Step 2: Convert to fraction form
    8,351.46/12,529.89 = 2,807.34/x
  3. Step 3: Cross multiply
    8,351.46x = 12,529.89 × 2,807.34
  4. Step 4: Simplify right side
    8,351.46x = 35,175,661.39
  5. Step 5: Solve for x
    x = 35,175,661.39/8,351.46
  6. Step 6: Final answer
    x = 4,211.92

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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.