Home / 14,228.44-19,632.90-7,940.80

Finding the Fourth Proportional to 14,228.44, 19,632.90 and 7,940.80

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Solution

The fourth proportional to 14,228.44, 19,632.90 and 7,940.80 is: 10,956.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,228.44 : 19,632.90 = 7,940.80 : x
  2. Step 2: Convert to fraction form
    14,228.44/19,632.90 = 7,940.80/x
  3. Step 3: Cross multiply
    14,228.44x = 19,632.90 × 7,940.80
  4. Step 4: Simplify right side
    14,228.44x = 155,900,932.32
  5. Step 5: Solve for x
    x = 155,900,932.32/14,228.44
  6. Step 6: Final answer
    x = 10,956.99

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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.