Home / 14,228.11-19,635.65-7,940.89

Finding the Fourth Proportional to 14,228.11, 19,635.65 and 7,940.89

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Solution

The fourth proportional to 14,228.11, 19,635.65 and 7,940.89 is: 10,958.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,228.11 : 19,635.65 = 7,940.89 : x
  2. Step 2: Convert to fraction form
    14,228.11/19,635.65 = 7,940.89/x
  3. Step 3: Cross multiply
    14,228.11x = 19,635.65 × 7,940.89
  4. Step 4: Simplify right side
    14,228.11x = 155,924,536.73
  5. Step 5: Solve for x
    x = 155,924,536.73/14,228.11
  6. Step 6: Final answer
    x = 10,958.91

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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.