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Finding the Fourth Proportional to 6,626.05, 9,929.84 and 4,980.69

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Solution

The fourth proportional to 6,626.05, 9,929.84 and 4,980.69 is: 7,464.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626.05 : 9,929.84 = 4,980.69 : x
  2. Step 2: Convert to fraction form
    6,626.05/9,929.84 = 4,980.69/x
  3. Step 3: Cross multiply
    6,626.05x = 9,929.84 × 4,980.69
  4. Step 4: Simplify right side
    6,626.05x = 49,457,457.90
  5. Step 5: Solve for x
    x = 49,457,457.90/6,626.05
  6. Step 6: Final answer
    x = 7,464.09

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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.