Home / 13,930.31-20,902.64-9,253.55

Finding the Fourth Proportional to 13,930.31, 20,902.64 and 9,253.55

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Solution

The fourth proportional to 13,930.31, 20,902.64 and 9,253.55 is: 13,885.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.31 : 20,902.64 = 9,253.55 : x
  2. Step 2: Convert to fraction form
    13,930.31/20,902.64 = 9,253.55/x
  3. Step 3: Cross multiply
    13,930.31x = 20,902.64 × 9,253.55
  4. Step 4: Simplify right side
    13,930.31x = 193,423,473.59
  5. Step 5: Solve for x
    x = 193,423,473.59/13,930.31
  6. Step 6: Final answer
    x = 13,885.09

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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.