Home / 11,855.20-16,360.08-6,550

Finding the Fourth Proportional to 11,855.20, 16,360.08 and 6,550

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Solution

The fourth proportional to 11,855.20, 16,360.08 and 6,550 is: 9,038.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.20 : 16,360.08 = 6,550 : x
  2. Step 2: Convert to fraction form
    11,855.20/16,360.08 = 6,550/x
  3. Step 3: Cross multiply
    11,855.20x = 16,360.08 × 6,550
  4. Step 4: Simplify right side
    11,855.20x = 107,158,524
  5. Step 5: Solve for x
    x = 107,158,524/11,855.20
  6. Step 6: Final answer
    x = 9,038.95

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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.