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Finding the Fourth Proportional to 7,773.79, 10,727.89 and 4,236.99

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Solution

The fourth proportional to 7,773.79, 10,727.89 and 4,236.99 is: 5,847.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,773.79 : 10,727.89 = 4,236.99 : x
  2. Step 2: Convert to fraction form
    7,773.79/10,727.89 = 4,236.99/x
  3. Step 3: Cross multiply
    7,773.79x = 10,727.89 × 4,236.99
  4. Step 4: Simplify right side
    7,773.79x = 45,453,962.65
  5. Step 5: Solve for x
    x = 45,453,962.65/7,773.79
  6. Step 6: Final answer
    x = 5,847.08

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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.