Home / 8,412.46-12,617.31-5,939.78

Finding the Fourth Proportional to 8,412.46, 12,617.31 and 5,939.78

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Solution

The fourth proportional to 8,412.46, 12,617.31 and 5,939.78 is: 8,908.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.46 : 12,617.31 = 5,939.78 : x
  2. Step 2: Convert to fraction form
    8,412.46/12,617.31 = 5,939.78/x
  3. Step 3: Cross multiply
    8,412.46x = 12,617.31 × 5,939.78
  4. Step 4: Simplify right side
    8,412.46x = 74,943,952.81
  5. Step 5: Solve for x
    x = 74,943,952.81/8,412.46
  6. Step 6: Final answer
    x = 8,908.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.