Home / 18,840.36-25,999.50-10,456.92

Finding the Fourth Proportional to 18,840.36, 25,999.50 and 10,456.92

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Solution

The fourth proportional to 18,840.36, 25,999.50 and 10,456.92 is: 14,430.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.36 : 25,999.50 = 10,456.92 : x
  2. Step 2: Convert to fraction form
    18,840.36/25,999.50 = 10,456.92/x
  3. Step 3: Cross multiply
    18,840.36x = 25,999.50 × 10,456.92
  4. Step 4: Simplify right side
    18,840.36x = 271,874,691.54
  5. Step 5: Solve for x
    x = 271,874,691.54/18,840.36
  6. Step 6: Final answer
    x = 14,430.44

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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.