Home / 18,117.09-27,170.15-10,719.59

Finding the Fourth Proportional to 18,117.09, 27,170.15 and 10,719.59

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Solution

The fourth proportional to 18,117.09, 27,170.15 and 10,719.59 is: 16,076.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.09 : 27,170.15 = 10,719.59 : x
  2. Step 2: Convert to fraction form
    18,117.09/27,170.15 = 10,719.59/x
  3. Step 3: Cross multiply
    18,117.09x = 27,170.15 × 10,719.59
  4. Step 4: Simplify right side
    18,117.09x = 291,252,678.79
  5. Step 5: Solve for x
    x = 291,252,678.79/18,117.09
  6. Step 6: Final answer
    x = 16,076.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.