Home / 18,798.24-28,189.80-12,214.56

Finding the Fourth Proportional to 18,798.24, 28,189.80 and 12,214.56

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Solution

The fourth proportional to 18,798.24, 28,189.80 and 12,214.56 is: 18,316.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,798.24 : 28,189.80 = 12,214.56 : x
  2. Step 2: Convert to fraction form
    18,798.24/28,189.80 = 12,214.56/x
  3. Step 3: Cross multiply
    18,798.24x = 28,189.80 × 12,214.56
  4. Step 4: Simplify right side
    18,798.24x = 344,326,003.49
  5. Step 5: Solve for x
    x = 344,326,003.49/18,798.24
  6. Step 6: Final answer
    x = 18,316.93

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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.