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Finding the Fourth Proportional to 6,347.07, 8,775.68 and 5,558.86

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Solution

The fourth proportional to 6,347.07, 8,775.68 and 5,558.86 is: 7,685.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,347.07 : 8,775.68 = 5,558.86 : x
  2. Step 2: Convert to fraction form
    6,347.07/8,775.68 = 5,558.86/x
  3. Step 3: Cross multiply
    6,347.07x = 8,775.68 × 5,558.86
  4. Step 4: Simplify right side
    6,347.07x = 48,782,764.64
  5. Step 5: Solve for x
    x = 48,782,764.64/6,347.07
  6. Step 6: Final answer
    x = 7,685.87

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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.