Home / 11,928.20-16,462.86-7,214.80

Finding the Fourth Proportional to 11,928.20, 16,462.86 and 7,214.80

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Solution

The fourth proportional to 11,928.20, 16,462.86 and 7,214.80 is: 9,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.20 : 16,462.86 = 7,214.80 : x
  2. Step 2: Convert to fraction form
    11,928.20/16,462.86 = 7,214.80/x
  3. Step 3: Cross multiply
    11,928.20x = 16,462.86 × 7,214.80
  4. Step 4: Simplify right side
    11,928.20x = 118,776,242.33
  5. Step 5: Solve for x
    x = 118,776,242.33/11,928.20
  6. Step 6: Final answer
    x = 9,957.60

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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.