Home / 12,166.20-18,227.70-10,308.60

Finding the Fourth Proportional to 12,166.20, 18,227.70 and 10,308.60

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Solution

The fourth proportional to 12,166.20, 18,227.70 and 10,308.60 is: 15,444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.20 : 18,227.70 = 10,308.60 : x
  2. Step 2: Convert to fraction form
    12,166.20/18,227.70 = 10,308.60/x
  3. Step 3: Cross multiply
    12,166.20x = 18,227.70 × 10,308.60
  4. Step 4: Simplify right side
    12,166.20x = 187,902,068.22
  5. Step 5: Solve for x
    x = 187,902,068.22/12,166.20
  6. Step 6: Final answer
    x = 15,444.60

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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.