Home / 18,456.33-25,460.87-12,080.11

Finding the Fourth Proportional to 18,456.33, 25,460.87 and 12,080.11

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Solution

The fourth proportional to 18,456.33, 25,460.87 and 12,080.11 is: 16,664.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.33 : 25,460.87 = 12,080.11 : x
  2. Step 2: Convert to fraction form
    18,456.33/25,460.87 = 12,080.11/x
  3. Step 3: Cross multiply
    18,456.33x = 25,460.87 × 12,080.11
  4. Step 4: Simplify right side
    18,456.33x = 307,570,140.50
  5. Step 5: Solve for x
    x = 307,570,140.50/18,456.33
  6. Step 6: Final answer
    x = 16,664.76

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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.