Home / 12,194.74-18,285.63-5,615.31

Finding the Fourth Proportional to 12,194.74, 18,285.63 and 5,615.31

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Solution

The fourth proportional to 12,194.74, 18,285.63 and 5,615.31 is: 8,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,194.74 : 18,285.63 = 5,615.31 : x
  2. Step 2: Convert to fraction form
    12,194.74/18,285.63 = 5,615.31/x
  3. Step 3: Cross multiply
    12,194.74x = 18,285.63 × 5,615.31
  4. Step 4: Simplify right side
    12,194.74x = 102,679,481.00
  5. Step 5: Solve for x
    x = 102,679,481.00/12,194.74
  6. Step 6: Final answer
    x = 8,419.98

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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.