Home / 12,403.30-18,599.55-4,080.10

Finding the Fourth Proportional to 12,403.30, 18,599.55 and 4,080.10

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Solution

The fourth proportional to 12,403.30, 18,599.55 and 4,080.10 is: 6,118.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.30 : 18,599.55 = 4,080.10 : x
  2. Step 2: Convert to fraction form
    12,403.30/18,599.55 = 4,080.10/x
  3. Step 3: Cross multiply
    12,403.30x = 18,599.55 × 4,080.10
  4. Step 4: Simplify right side
    12,403.30x = 75,888,023.96
  5. Step 5: Solve for x
    x = 75,888,023.96/12,403.30
  6. Step 6: Final answer
    x = 6,118.37

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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.