Home / 18,171.45-25,076.91-10,105.77

Finding the Fourth Proportional to 18,171.45, 25,076.91 and 10,105.77

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Solution

The fourth proportional to 18,171.45, 25,076.91 and 10,105.77 is: 13,946.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.45 : 25,076.91 = 10,105.77 : x
  2. Step 2: Convert to fraction form
    18,171.45/25,076.91 = 10,105.77/x
  3. Step 3: Cross multiply
    18,171.45x = 25,076.91 × 10,105.77
  4. Step 4: Simplify right side
    18,171.45x = 253,421,484.77
  5. Step 5: Solve for x
    x = 253,421,484.77/18,171.45
  6. Step 6: Final answer
    x = 13,946.13

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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.