Home / 18,273.45-25,218.09-10,315.20

Finding the Fourth Proportional to 18,273.45, 25,218.09 and 10,315.20

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Solution

The fourth proportional to 18,273.45, 25,218.09 and 10,315.20 is: 14,235.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,273.45 : 25,218.09 = 10,315.20 : x
  2. Step 2: Convert to fraction form
    18,273.45/25,218.09 = 10,315.20/x
  3. Step 3: Cross multiply
    18,273.45x = 25,218.09 × 10,315.20
  4. Step 4: Simplify right side
    18,273.45x = 260,129,641.97
  5. Step 5: Solve for x
    x = 260,129,641.97/18,273.45
  6. Step 6: Final answer
    x = 14,235.39

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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.