Home / 18,018.04-27,027.06-13,118.86

Finding the Fourth Proportional to 18,018.04, 27,027.06 and 13,118.86

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Solution

The fourth proportional to 18,018.04, 27,027.06 and 13,118.86 is: 19,678.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.04 : 27,027.06 = 13,118.86 : x
  2. Step 2: Convert to fraction form
    18,018.04/27,027.06 = 13,118.86/x
  3. Step 3: Cross multiply
    18,018.04x = 27,027.06 × 13,118.86
  4. Step 4: Simplify right side
    18,018.04x = 354,564,048.42
  5. Step 5: Solve for x
    x = 354,564,048.42/18,018.04
  6. Step 6: Final answer
    x = 19,678.28

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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.