Home / 7,678.35-11,513.70-2,995.56

Finding the Fourth Proportional to 7,678.35, 11,513.70 and 2,995.56

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Solution

The fourth proportional to 7,678.35, 11,513.70 and 2,995.56 is: 4,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678.35 : 11,513.70 = 2,995.56 : x
  2. Step 2: Convert to fraction form
    7,678.35/11,513.70 = 2,995.56/x
  3. Step 3: Cross multiply
    7,678.35x = 11,513.70 × 2,995.56
  4. Step 4: Simplify right side
    7,678.35x = 34,489,979.17
  5. Step 5: Solve for x
    x = 34,489,979.17/7,678.35
  6. Step 6: Final answer
    x = 4,491.85

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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.