Home / 12,212.88-18,318.04-5,970.48

Finding the Fourth Proportional to 12,212.88, 18,318.04 and 5,970.48

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Solution

The fourth proportional to 12,212.88, 18,318.04 and 5,970.48 is: 8,955.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.88 : 18,318.04 = 5,970.48 : x
  2. Step 2: Convert to fraction form
    12,212.88/18,318.04 = 5,970.48/x
  3. Step 3: Cross multiply
    12,212.88x = 18,318.04 × 5,970.48
  4. Step 4: Simplify right side
    12,212.88x = 109,367,491.46
  5. Step 5: Solve for x
    x = 109,367,491.46/12,212.88
  6. Step 6: Final answer
    x = 8,955.09

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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.