Home / 8,949.23-12,351.03-4,970.78

Finding the Fourth Proportional to 8,949.23, 12,351.03 and 4,970.78

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Solution

The fourth proportional to 8,949.23, 12,351.03 and 4,970.78 is: 6,860.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.23 : 12,351.03 = 4,970.78 : x
  2. Step 2: Convert to fraction form
    8,949.23/12,351.03 = 4,970.78/x
  3. Step 3: Cross multiply
    8,949.23x = 12,351.03 × 4,970.78
  4. Step 4: Simplify right side
    8,949.23x = 61,394,283.78
  5. Step 5: Solve for x
    x = 61,394,283.78/8,949.23
  6. Step 6: Final answer
    x = 6,860.28

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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.