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Finding the Fourth Proportional to 6,459.54, 8,916.87 and 5,469.94

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Solution

The fourth proportional to 6,459.54, 8,916.87 and 5,469.94 is: 7,550.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,459.54 : 8,916.87 = 5,469.94 : x
  2. Step 2: Convert to fraction form
    6,459.54/8,916.87 = 5,469.94/x
  3. Step 3: Cross multiply
    6,459.54x = 8,916.87 × 5,469.94
  4. Step 4: Simplify right side
    6,459.54x = 48,774,743.89
  5. Step 5: Solve for x
    x = 48,774,743.89/6,459.54
  6. Step 6: Final answer
    x = 7,550.81

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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.