Home / 7,676.38-11,499.75-6,428.98

Finding the Fourth Proportional to 7,676.38, 11,499.75 and 6,428.98

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Solution

The fourth proportional to 7,676.38, 11,499.75 and 6,428.98 is: 9,631.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676.38 : 11,499.75 = 6,428.98 : x
  2. Step 2: Convert to fraction form
    7,676.38/11,499.75 = 6,428.98/x
  3. Step 3: Cross multiply
    7,676.38x = 11,499.75 × 6,428.98
  4. Step 4: Simplify right side
    7,676.38x = 73,931,662.76
  5. Step 5: Solve for x
    x = 73,931,662.76/7,676.38
  6. Step 6: Final answer
    x = 9,631.06

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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.