Home / 8,949.82-12,349.42-4,970.96

Finding the Fourth Proportional to 8,949.82, 12,349.42 and 4,970.96

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Solution

The fourth proportional to 8,949.82, 12,349.42 and 4,970.96 is: 6,859.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.82 : 12,349.42 = 4,970.96 : x
  2. Step 2: Convert to fraction form
    8,949.82/12,349.42 = 4,970.96/x
  3. Step 3: Cross multiply
    8,949.82x = 12,349.42 × 4,970.96
  4. Step 4: Simplify right side
    8,949.82x = 61,388,472.84
  5. Step 5: Solve for x
    x = 61,388,472.84/8,949.82
  6. Step 6: Final answer
    x = 6,859.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.