Home / 18,018.56-27,009.40-10,210.88

Finding the Fourth Proportional to 18,018.56, 27,009.40 and 10,210.88

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Solution

The fourth proportional to 18,018.56, 27,009.40 and 10,210.88 is: 15,305.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.56 : 27,009.40 = 10,210.88 : x
  2. Step 2: Convert to fraction form
    18,018.56/27,009.40 = 10,210.88/x
  3. Step 3: Cross multiply
    18,018.56x = 27,009.40 × 10,210.88
  4. Step 4: Simplify right side
    18,018.56x = 275,789,742.27
  5. Step 5: Solve for x
    x = 275,789,742.27/18,018.56
  6. Step 6: Final answer
    x = 15,305.87

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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.