Home / 18,749.62-28,124.43-12,943.14

Finding the Fourth Proportional to 18,749.62, 28,124.43 and 12,943.14

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Solution

The fourth proportional to 18,749.62, 28,124.43 and 12,943.14 is: 19,414.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,749.62 : 28,124.43 = 12,943.14 : x
  2. Step 2: Convert to fraction form
    18,749.62/28,124.43 = 12,943.14/x
  3. Step 3: Cross multiply
    18,749.62x = 28,124.43 × 12,943.14
  4. Step 4: Simplify right side
    18,749.62x = 364,018,434.91
  5. Step 5: Solve for x
    x = 364,018,434.91/18,749.62
  6. Step 6: Final answer
    x = 19,414.71

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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.