Home / 18,804.12-28,205.30-7,708.08

Finding the Fourth Proportional to 18,804.12, 28,205.30 and 7,708.08

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Solution

The fourth proportional to 18,804.12, 28,205.30 and 7,708.08 is: 11,561.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.12 : 28,205.30 = 7,708.08 : x
  2. Step 2: Convert to fraction form
    18,804.12/28,205.30 = 7,708.08/x
  3. Step 3: Cross multiply
    18,804.12x = 28,205.30 × 7,708.08
  4. Step 4: Simplify right side
    18,804.12x = 217,408,708.82
  5. Step 5: Solve for x
    x = 217,408,708.82/18,804.12
  6. Step 6: Final answer
    x = 11,561.76

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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.