Home / 18,675.96-28,018.26-8,288.52

Finding the Fourth Proportional to 18,675.96, 28,018.26 and 8,288.52

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Solution

The fourth proportional to 18,675.96, 28,018.26 and 8,288.52 is: 12,434.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.96 : 28,018.26 = 8,288.52 : x
  2. Step 2: Convert to fraction form
    18,675.96/28,018.26 = 8,288.52/x
  3. Step 3: Cross multiply
    18,675.96x = 28,018.26 × 8,288.52
  4. Step 4: Simplify right side
    18,675.96x = 232,229,908.38
  5. Step 5: Solve for x
    x = 232,229,908.38/18,675.96
  6. Step 6: Final answer
    x = 12,434.70

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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.