Home / 18,120.77-25,006.60-10,163.03

Finding the Fourth Proportional to 18,120.77, 25,006.60 and 10,163.03

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Solution

The fourth proportional to 18,120.77, 25,006.60 and 10,163.03 is: 14,024.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.77 : 25,006.60 = 10,163.03 : x
  2. Step 2: Convert to fraction form
    18,120.77/25,006.60 = 10,163.03/x
  3. Step 3: Cross multiply
    18,120.77x = 25,006.60 × 10,163.03
  4. Step 4: Simplify right side
    18,120.77x = 254,142,826.00
  5. Step 5: Solve for x
    x = 254,142,826.00/18,120.77
  6. Step 6: Final answer
    x = 14,024.95

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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.