Home / 18,179.16-25,088.22-10,221.72

Finding the Fourth Proportional to 18,179.16, 25,088.22 and 10,221.72

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Solution

The fourth proportional to 18,179.16, 25,088.22 and 10,221.72 is: 14,106.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.16 : 25,088.22 = 10,221.72 : x
  2. Step 2: Convert to fraction form
    18,179.16/25,088.22 = 10,221.72/x
  3. Step 3: Cross multiply
    18,179.16x = 25,088.22 × 10,221.72
  4. Step 4: Simplify right side
    18,179.16x = 256,444,760.14
  5. Step 5: Solve for x
    x = 256,444,760.14/18,179.16
  6. Step 6: Final answer
    x = 14,106.52

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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.