Home / 12,278.58-18,403.86-5,600.19

Finding the Fourth Proportional to 12,278.58, 18,403.86 and 5,600.19

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Solution

The fourth proportional to 12,278.58, 18,403.86 and 5,600.19 is: 8,393.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.58 : 18,403.86 = 5,600.19 : x
  2. Step 2: Convert to fraction form
    12,278.58/18,403.86 = 5,600.19/x
  3. Step 3: Cross multiply
    12,278.58x = 18,403.86 × 5,600.19
  4. Step 4: Simplify right side
    12,278.58x = 103,065,112.73
  5. Step 5: Solve for x
    x = 103,065,112.73/12,278.58
  6. Step 6: Final answer
    x = 8,393.90

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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.