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Finding the Fourth Proportional to 8,773.21, 13,143.36 and 4,393.74

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Solution

The fourth proportional to 8,773.21, 13,143.36 and 4,393.74 is: 6,582.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,773.21 : 13,143.36 = 4,393.74 : x
  2. Step 2: Convert to fraction form
    8,773.21/13,143.36 = 4,393.74/x
  3. Step 3: Cross multiply
    8,773.21x = 13,143.36 × 4,393.74
  4. Step 4: Simplify right side
    8,773.21x = 57,748,572.33
  5. Step 5: Solve for x
    x = 57,748,572.33/8,773.21
  6. Step 6: Final answer
    x = 6,582.38

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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.