Home / 14,217.65-19,620.39-7,930.43

Finding the Fourth Proportional to 14,217.65, 19,620.39 and 7,930.43

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Solution

The fourth proportional to 14,217.65, 19,620.39 and 7,930.43 is: 10,944.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,217.65 : 19,620.39 = 7,930.43 : x
  2. Step 2: Convert to fraction form
    14,217.65/19,620.39 = 7,930.43/x
  3. Step 3: Cross multiply
    14,217.65x = 19,620.39 × 7,930.43
  4. Step 4: Simplify right side
    14,217.65x = 155,598,031.37
  5. Step 5: Solve for x
    x = 155,598,031.37/14,217.65
  6. Step 6: Final answer
    x = 10,944.01

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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.