Home / 12,160.46-16,781.45-6,855.26

Finding the Fourth Proportional to 12,160.46, 16,781.45 and 6,855.26

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Solution

The fourth proportional to 12,160.46, 16,781.45 and 6,855.26 is: 9,460.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.46 : 16,781.45 = 6,855.26 : x
  2. Step 2: Convert to fraction form
    12,160.46/16,781.45 = 6,855.26/x
  3. Step 3: Cross multiply
    12,160.46x = 16,781.45 × 6,855.26
  4. Step 4: Simplify right side
    12,160.46x = 115,041,084.74
  5. Step 5: Solve for x
    x = 115,041,084.74/12,160.46
  6. Step 6: Final answer
    x = 9,460.26

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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.