Home / 12,781.04-19,141.14-8,084.84

Finding the Fourth Proportional to 12,781.04, 19,141.14 and 8,084.84

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Solution

The fourth proportional to 12,781.04, 19,141.14 and 8,084.84 is: 12,108.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781.04 : 19,141.14 = 8,084.84 : x
  2. Step 2: Convert to fraction form
    12,781.04/19,141.14 = 8,084.84/x
  3. Step 3: Cross multiply
    12,781.04x = 19,141.14 × 8,084.84
  4. Step 4: Simplify right side
    12,781.04x = 154,753,054.32
  5. Step 5: Solve for x
    x = 154,753,054.32/12,781.04
  6. Step 6: Final answer
    x = 12,108.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.