Home / 12,160.49-16,781.52-6,855.35

Finding the Fourth Proportional to 12,160.49, 16,781.52 and 6,855.35

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Solution

The fourth proportional to 12,160.49, 16,781.52 and 6,855.35 is: 9,460.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.49 : 16,781.52 = 6,855.35 : x
  2. Step 2: Convert to fraction form
    12,160.49/16,781.52 = 6,855.35/x
  3. Step 3: Cross multiply
    12,160.49x = 16,781.52 × 6,855.35
  4. Step 4: Simplify right side
    12,160.49x = 115,043,193.13
  5. Step 5: Solve for x
    x = 115,043,193.13/12,160.49
  6. Step 6: Final answer
    x = 9,460.41

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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.