Home / 18,675.40-28,013.10-8,833.90

Finding the Fourth Proportional to 18,675.40, 28,013.10 and 8,833.90

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Solution

The fourth proportional to 18,675.40, 28,013.10 and 8,833.90 is: 13,250.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.40 : 28,013.10 = 8,833.90 : x
  2. Step 2: Convert to fraction form
    18,675.40/28,013.10 = 8,833.90/x
  3. Step 3: Cross multiply
    18,675.40x = 28,013.10 × 8,833.90
  4. Step 4: Simplify right side
    18,675.40x = 247,464,924.09
  5. Step 5: Solve for x
    x = 247,464,924.09/18,675.40
  6. Step 6: Final answer
    x = 13,250.85

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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.