Home / 8,949.23-12,349.94-4,970.72

Finding the Fourth Proportional to 8,949.23, 12,349.94 and 4,970.72

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Solution

The fourth proportional to 8,949.23, 12,349.94 and 4,970.72 is: 6,859.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.23 : 12,349.94 = 4,970.72 : x
  2. Step 2: Convert to fraction form
    8,949.23/12,349.94 = 4,970.72/x
  3. Step 3: Cross multiply
    8,949.23x = 12,349.94 × 4,970.72
  4. Step 4: Simplify right side
    8,949.23x = 61,388,072.25
  5. Step 5: Solve for x
    x = 61,388,072.25/8,949.23
  6. Step 6: Final answer
    x = 6,859.59

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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.