Home / 18,763.20-25,887.54-10,805.22

Finding the Fourth Proportional to 18,763.20, 25,887.54 and 10,805.22

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Solution

The fourth proportional to 18,763.20, 25,887.54 and 10,805.22 is: 14,907.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.20 : 25,887.54 = 10,805.22 : x
  2. Step 2: Convert to fraction form
    18,763.20/25,887.54 = 10,805.22/x
  3. Step 3: Cross multiply
    18,763.20x = 25,887.54 × 10,805.22
  4. Step 4: Simplify right side
    18,763.20x = 279,720,564.96
  5. Step 5: Solve for x
    x = 279,720,564.96/18,763.20
  6. Step 6: Final answer
    x = 14,907.93

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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.