Home / 7,135-9,848.94-5,371.72

Finding the Fourth Proportional to 7,135, 9,848.94 and 5,371.72

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Solution

The fourth proportional to 7,135, 9,848.94 and 5,371.72 is: 7,414.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135 : 9,848.94 = 5,371.72 : x
  2. Step 2: Convert to fraction form
    7,135/9,848.94 = 5,371.72/x
  3. Step 3: Cross multiply
    7,135x = 9,848.94 × 5,371.72
  4. Step 4: Simplify right side
    7,135x = 52,905,747.98
  5. Step 5: Solve for x
    x = 52,905,747.98/7,135
  6. Step 6: Final answer
    x = 7,414.96

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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.