Home / 8,939.75-12,338.31-4,962.14

Finding the Fourth Proportional to 8,939.75, 12,338.31 and 4,962.14

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Solution

The fourth proportional to 8,939.75, 12,338.31 and 4,962.14 is: 6,848.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.75 : 12,338.31 = 4,962.14 : x
  2. Step 2: Convert to fraction form
    8,939.75/12,338.31 = 4,962.14/x
  3. Step 3: Cross multiply
    8,939.75x = 12,338.31 × 4,962.14
  4. Step 4: Simplify right side
    8,939.75x = 61,224,359.89
  5. Step 5: Solve for x
    x = 61,224,359.89/8,939.75
  6. Step 6: Final answer
    x = 6,848.56

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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.