Home / 14,117.28-19,481.20-7,829.60

Finding the Fourth Proportional to 14,117.28, 19,481.20 and 7,829.60

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Solution

The fourth proportional to 14,117.28, 19,481.20 and 7,829.60 is: 10,804.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.28 : 19,481.20 = 7,829.60 : x
  2. Step 2: Convert to fraction form
    14,117.28/19,481.20 = 7,829.60/x
  3. Step 3: Cross multiply
    14,117.28x = 19,481.20 × 7,829.60
  4. Step 4: Simplify right side
    14,117.28x = 152,530,003.52
  5. Step 5: Solve for x
    x = 152,530,003.52/14,117.28
  6. Step 6: Final answer
    x = 10,804.49

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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.