Home / 12,212.20-18,329.10-10,462.60

Finding the Fourth Proportional to 12,212.20, 18,329.10 and 10,462.60

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Solution

The fourth proportional to 12,212.20, 18,329.10 and 10,462.60 is: 15,703.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.20 : 18,329.10 = 10,462.60 : x
  2. Step 2: Convert to fraction form
    12,212.20/18,329.10 = 10,462.60/x
  3. Step 3: Cross multiply
    12,212.20x = 18,329.10 × 10,462.60
  4. Step 4: Simplify right side
    12,212.20x = 191,770,041.66
  5. Step 5: Solve for x
    x = 191,770,041.66/12,212.20
  6. Step 6: Final answer
    x = 15,703.15

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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.