Home / 18,761.40-25,887.33-10,803.15

Finding the Fourth Proportional to 18,761.40, 25,887.33 and 10,803.15

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Solution

The fourth proportional to 18,761.40, 25,887.33 and 10,803.15 is: 14,906.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,761.40 : 25,887.33 = 10,803.15 : x
  2. Step 2: Convert to fraction form
    18,761.40/25,887.33 = 10,803.15/x
  3. Step 3: Cross multiply
    18,761.40x = 25,887.33 × 10,803.15
  4. Step 4: Simplify right side
    18,761.40x = 279,664,709.09
  5. Step 5: Solve for x
    x = 279,664,709.09/18,761.40
  6. Step 6: Final answer
    x = 14,906.39

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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.