Home / 12,212.12-16,852.80-7,494.68

Finding the Fourth Proportional to 12,212.12, 16,852.80 and 7,494.68

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Solution

The fourth proportional to 12,212.12, 16,852.80 and 7,494.68 is: 10,342.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.12 : 16,852.80 = 7,494.68 : x
  2. Step 2: Convert to fraction form
    12,212.12/16,852.80 = 7,494.68/x
  3. Step 3: Cross multiply
    12,212.12x = 16,852.80 × 7,494.68
  4. Step 4: Simplify right side
    12,212.12x = 126,306,343.10
  5. Step 5: Solve for x
    x = 126,306,343.10/12,212.12
  6. Step 6: Final answer
    x = 10,342.70

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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.