Home / 7,423.96-11,126.26-6,639.32

Finding the Fourth Proportional to 7,423.96, 11,126.26 and 6,639.32

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Solution

The fourth proportional to 7,423.96, 11,126.26 and 6,639.32 is: 9,950.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,423.96 : 11,126.26 = 6,639.32 : x
  2. Step 2: Convert to fraction form
    7,423.96/11,126.26 = 6,639.32/x
  3. Step 3: Cross multiply
    7,423.96x = 11,126.26 × 6,639.32
  4. Step 4: Simplify right side
    7,423.96x = 73,870,800.54
  5. Step 5: Solve for x
    x = 73,870,800.54/7,423.96
  6. Step 6: Final answer
    x = 9,950.32

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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.