Home / 12,160.08-16,780.22-6,854.98

Finding the Fourth Proportional to 12,160.08, 16,780.22 and 6,854.98

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Solution

The fourth proportional to 12,160.08, 16,780.22 and 6,854.98 is: 9,459.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.08 : 16,780.22 = 6,854.98 : x
  2. Step 2: Convert to fraction form
    12,160.08/16,780.22 = 6,854.98/x
  3. Step 3: Cross multiply
    12,160.08x = 16,780.22 × 6,854.98
  4. Step 4: Simplify right side
    12,160.08x = 115,028,072.50
  5. Step 5: Solve for x
    x = 115,028,072.50/12,160.08
  6. Step 6: Final answer
    x = 9,459.48

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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.