Home / 12,624.12-18,936.32-6,382.80

Finding the Fourth Proportional to 12,624.12, 18,936.32 and 6,382.80

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Solution

The fourth proportional to 12,624.12, 18,936.32 and 6,382.80 is: 9,574.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624.12 : 18,936.32 = 6,382.80 : x
  2. Step 2: Convert to fraction form
    12,624.12/18,936.32 = 6,382.80/x
  3. Step 3: Cross multiply
    12,624.12x = 18,936.32 × 6,382.80
  4. Step 4: Simplify right side
    12,624.12x = 120,866,711.38
  5. Step 5: Solve for x
    x = 120,866,711.38/12,624.12
  6. Step 6: Final answer
    x = 9,574.27

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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.