Home / 14,620.46-21,930.88-4,759.78

Finding the Fourth Proportional to 14,620.46, 21,930.88 and 4,759.78

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Solution

The fourth proportional to 14,620.46, 21,930.88 and 4,759.78 is: 7,139.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,620.46 : 21,930.88 = 4,759.78 : x
  2. Step 2: Convert to fraction form
    14,620.46/21,930.88 = 4,759.78/x
  3. Step 3: Cross multiply
    14,620.46x = 21,930.88 × 4,759.78
  4. Step 4: Simplify right side
    14,620.46x = 104,386,164.01
  5. Step 5: Solve for x
    x = 104,386,164.01/14,620.46
  6. Step 6: Final answer
    x = 7,139.73

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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.