Home / 13,942.38-19,240.55-7,654.75

Finding the Fourth Proportional to 13,942.38, 19,240.55 and 7,654.75

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Solution

The fourth proportional to 13,942.38, 19,240.55 and 7,654.75 is: 10,563.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.38 : 19,240.55 = 7,654.75 : x
  2. Step 2: Convert to fraction form
    13,942.38/19,240.55 = 7,654.75/x
  3. Step 3: Cross multiply
    13,942.38x = 19,240.55 × 7,654.75
  4. Step 4: Simplify right side
    13,942.38x = 147,281,600.11
  5. Step 5: Solve for x
    x = 147,281,600.11/13,942.38
  6. Step 6: Final answer
    x = 10,563.59

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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.