Home / 12,119.04-16,722.36-6,812.82

Finding the Fourth Proportional to 12,119.04, 16,722.36 and 6,812.82

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Solution

The fourth proportional to 12,119.04, 16,722.36 and 6,812.82 is: 9,400.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.04 : 16,722.36 = 6,812.82 : x
  2. Step 2: Convert to fraction form
    12,119.04/16,722.36 = 6,812.82/x
  3. Step 3: Cross multiply
    12,119.04x = 16,722.36 × 6,812.82
  4. Step 4: Simplify right side
    12,119.04x = 113,926,428.66
  5. Step 5: Solve for x
    x = 113,926,428.66/12,119.04
  6. Step 6: Final answer
    x = 9,400.61

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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.