Home / 18,128.07-25,014.83-10,171.17

Finding the Fourth Proportional to 18,128.07, 25,014.83 and 10,171.17

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Solution

The fourth proportional to 18,128.07, 25,014.83 and 10,171.17 is: 14,035.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.07 : 25,014.83 = 10,171.17 : x
  2. Step 2: Convert to fraction form
    18,128.07/25,014.83 = 10,171.17/x
  3. Step 3: Cross multiply
    18,128.07x = 25,014.83 × 10,171.17
  4. Step 4: Simplify right side
    18,128.07x = 254,430,037.60
  5. Step 5: Solve for x
    x = 254,430,037.60/18,128.07
  6. Step 6: Final answer
    x = 14,035.14

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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.