Home / 6,516.05-8,989.79-4,279.13

Finding the Fourth Proportional to 6,516.05, 8,989.79 and 4,279.13

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Solution

The fourth proportional to 6,516.05, 8,989.79 and 4,279.13 is: 5,903.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.05 : 8,989.79 = 4,279.13 : x
  2. Step 2: Convert to fraction form
    6,516.05/8,989.79 = 4,279.13/x
  3. Step 3: Cross multiply
    6,516.05x = 8,989.79 × 4,279.13
  4. Step 4: Simplify right side
    6,516.05x = 38,468,447.45
  5. Step 5: Solve for x
    x = 38,468,447.45/6,516.05
  6. Step 6: Final answer
    x = 5,903.65

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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.