Home / 12,008.36-18,001.58-4,212.92

Finding the Fourth Proportional to 12,008.36, 18,001.58 and 4,212.92

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Solution

The fourth proportional to 12,008.36, 18,001.58 and 4,212.92 is: 6,315.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,008.36 : 18,001.58 = 4,212.92 : x
  2. Step 2: Convert to fraction form
    12,008.36/18,001.58 = 4,212.92/x
  3. Step 3: Cross multiply
    12,008.36x = 18,001.58 × 4,212.92
  4. Step 4: Simplify right side
    12,008.36x = 75,839,216.41
  5. Step 5: Solve for x
    x = 75,839,216.41/12,008.36
  6. Step 6: Final answer
    x = 6,315.53

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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.