Home / 6,938.52-10,394.62-4,121.40

Finding the Fourth Proportional to 6,938.52, 10,394.62 and 4,121.40

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Solution

The fourth proportional to 6,938.52, 10,394.62 and 4,121.40 is: 6,174.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.52 : 10,394.62 = 4,121.40 : x
  2. Step 2: Convert to fraction form
    6,938.52/10,394.62 = 4,121.40/x
  3. Step 3: Cross multiply
    6,938.52x = 10,394.62 × 4,121.40
  4. Step 4: Simplify right side
    6,938.52x = 42,840,386.87
  5. Step 5: Solve for x
    x = 42,840,386.87/6,938.52
  6. Step 6: Final answer
    x = 6,174.28

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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.