Home / 12,160.73-16,779.68-6,855.77

Finding the Fourth Proportional to 12,160.73, 16,779.68 and 6,855.77

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Solution

The fourth proportional to 12,160.73, 16,779.68 and 6,855.77 is: 9,459.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.73 : 16,779.68 = 6,855.77 : x
  2. Step 2: Convert to fraction form
    12,160.73/16,779.68 = 6,855.77/x
  3. Step 3: Cross multiply
    12,160.73x = 16,779.68 × 6,855.77
  4. Step 4: Simplify right side
    12,160.73x = 115,037,592.47
  5. Step 5: Solve for x
    x = 115,037,592.47/12,160.73
  6. Step 6: Final answer
    x = 9,459.76

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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.