Home / 14,217.85-19,620.62-7,930.22

Finding the Fourth Proportional to 14,217.85, 19,620.62 and 7,930.22

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Solution

The fourth proportional to 14,217.85, 19,620.62 and 7,930.22 is: 10,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,217.85 : 19,620.62 = 7,930.22 : x
  2. Step 2: Convert to fraction form
    14,217.85/19,620.62 = 7,930.22/x
  3. Step 3: Cross multiply
    14,217.85x = 19,620.62 × 7,930.22
  4. Step 4: Simplify right side
    14,217.85x = 155,595,902.01
  5. Step 5: Solve for x
    x = 155,595,902.01/14,217.85
  6. Step 6: Final answer
    x = 10,943.70

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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.