Home / 7,346.14-10,137.68-3,988.96

Finding the Fourth Proportional to 7,346.14, 10,137.68 and 3,988.96

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Solution

The fourth proportional to 7,346.14, 10,137.68 and 3,988.96 is: 5,504.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,346.14 : 10,137.68 = 3,988.96 : x
  2. Step 2: Convert to fraction form
    7,346.14/10,137.68 = 3,988.96/x
  3. Step 3: Cross multiply
    7,346.14x = 10,137.68 × 3,988.96
  4. Step 4: Simplify right side
    7,346.14x = 40,438,800.01
  5. Step 5: Solve for x
    x = 40,438,800.01/7,346.14
  6. Step 6: Final answer
    x = 5,504.77

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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.