Home / 18,279.36-27,415.57-8,909.96

Finding the Fourth Proportional to 18,279.36, 27,415.57 and 8,909.96

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Solution

The fourth proportional to 18,279.36, 27,415.57 and 8,909.96 is: 13,363.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.36 : 27,415.57 = 8,909.96 : x
  2. Step 2: Convert to fraction form
    18,279.36/27,415.57 = 8,909.96/x
  3. Step 3: Cross multiply
    18,279.36x = 27,415.57 × 8,909.96
  4. Step 4: Simplify right side
    18,279.36x = 244,271,632.08
  5. Step 5: Solve for x
    x = 244,271,632.08/18,279.36
  6. Step 6: Final answer
    x = 13,363.25

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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.