Home / 8,151.28-12,218.64-4,634.02

Finding the Fourth Proportional to 8,151.28, 12,218.64 and 4,634.02

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Solution

The fourth proportional to 8,151.28, 12,218.64 and 4,634.02 is: 6,946.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.28 : 12,218.64 = 4,634.02 : x
  2. Step 2: Convert to fraction form
    8,151.28/12,218.64 = 4,634.02/x
  3. Step 3: Cross multiply
    8,151.28x = 12,218.64 × 4,634.02
  4. Step 4: Simplify right side
    8,151.28x = 56,621,408.96
  5. Step 5: Solve for x
    x = 56,621,408.96/8,151.28
  6. Step 6: Final answer
    x = 6,946.32

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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.