Home / 18,411.09-25,402.89-10,856.83

Finding the Fourth Proportional to 18,411.09, 25,402.89 and 10,856.83

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Solution

The fourth proportional to 18,411.09, 25,402.89 and 10,856.83 is: 14,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.09 : 25,402.89 = 10,856.83 : x
  2. Step 2: Convert to fraction form
    18,411.09/25,402.89 = 10,856.83/x
  3. Step 3: Cross multiply
    18,411.09x = 25,402.89 × 10,856.83
  4. Step 4: Simplify right side
    18,411.09x = 275,794,794.73
  5. Step 5: Solve for x
    x = 275,794,794.73/18,411.09
  6. Step 6: Final answer
    x = 14,979.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.