Home / 12,003.28-18,006.84-5,077.84

Finding the Fourth Proportional to 12,003.28, 18,006.84 and 5,077.84

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Solution

The fourth proportional to 12,003.28, 18,006.84 and 5,077.84 is: 7,617.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,003.28 : 18,006.84 = 5,077.84 : x
  2. Step 2: Convert to fraction form
    12,003.28/18,006.84 = 5,077.84/x
  3. Step 3: Cross multiply
    12,003.28x = 18,006.84 × 5,077.84
  4. Step 4: Simplify right side
    12,003.28x = 91,435,852.43
  5. Step 5: Solve for x
    x = 91,435,852.43/12,003.28
  6. Step 6: Final answer
    x = 7,617.57

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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.