Home / 12,403.58-18,605.10-4,080.20

Finding the Fourth Proportional to 12,403.58, 18,605.10 and 4,080.20

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Solution

The fourth proportional to 12,403.58, 18,605.10 and 4,080.20 is: 6,120.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.58 : 18,605.10 = 4,080.20 : x
  2. Step 2: Convert to fraction form
    12,403.58/18,605.10 = 4,080.20/x
  3. Step 3: Cross multiply
    12,403.58x = 18,605.10 × 4,080.20
  4. Step 4: Simplify right side
    12,403.58x = 75,912,529.02
  5. Step 5: Solve for x
    x = 75,912,529.02/12,403.58
  6. Step 6: Final answer
    x = 6,120.21

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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.