Home / 8,939.89-12,338.51-4,962.28

Finding the Fourth Proportional to 8,939.89, 12,338.51 and 4,962.28

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Solution

The fourth proportional to 8,939.89, 12,338.51 and 4,962.28 is: 6,848.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.89 : 12,338.51 = 4,962.28 : x
  2. Step 2: Convert to fraction form
    8,939.89/12,338.51 = 4,962.28/x
  3. Step 3: Cross multiply
    8,939.89x = 12,338.51 × 4,962.28
  4. Step 4: Simplify right side
    8,939.89x = 61,227,054.90
  5. Step 5: Solve for x
    x = 61,227,054.90/8,939.89
  6. Step 6: Final answer
    x = 6,848.75

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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.