Home / 12,615.93-18,938.25-6,382.98

Finding the Fourth Proportional to 12,615.93, 18,938.25 and 6,382.98

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Solution

The fourth proportional to 12,615.93, 18,938.25 and 6,382.98 is: 9,581.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615.93 : 18,938.25 = 6,382.98 : x
  2. Step 2: Convert to fraction form
    12,615.93/18,938.25 = 6,382.98/x
  3. Step 3: Cross multiply
    12,615.93x = 18,938.25 × 6,382.98
  4. Step 4: Simplify right side
    12,615.93x = 120,882,470.99
  5. Step 5: Solve for x
    x = 120,882,470.99/12,615.93
  6. Step 6: Final answer
    x = 9,581.73

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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.