Home / 12,339.78-17,028.84-6,674.53

Finding the Fourth Proportional to 12,339.78, 17,028.84 and 6,674.53

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Solution

The fourth proportional to 12,339.78, 17,028.84 and 6,674.53 is: 9,210.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.78 : 17,028.84 = 6,674.53 : x
  2. Step 2: Convert to fraction form
    12,339.78/17,028.84 = 6,674.53/x
  3. Step 3: Cross multiply
    12,339.78x = 17,028.84 × 6,674.53
  4. Step 4: Simplify right side
    12,339.78x = 113,659,503.45
  5. Step 5: Solve for x
    x = 113,659,503.45/12,339.78
  6. Step 6: Final answer
    x = 9,210.82

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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.