Home / 16,912.95-25,379.45-9,422.78

Finding the Fourth Proportional to 16,912.95, 25,379.45 and 9,422.78

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Solution

The fourth proportional to 16,912.95, 25,379.45 and 9,422.78 is: 14,139.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.95 : 25,379.45 = 9,422.78 : x
  2. Step 2: Convert to fraction form
    16,912.95/25,379.45 = 9,422.78/x
  3. Step 3: Cross multiply
    16,912.95x = 25,379.45 × 9,422.78
  4. Step 4: Simplify right side
    16,912.95x = 239,144,880.07
  5. Step 5: Solve for x
    x = 239,144,880.07/16,912.95
  6. Step 6: Final answer
    x = 14,139.75

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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.