Home / 11,018.11-15,207.36-8,623.35

Finding the Fourth Proportional to 11,018.11, 15,207.36 and 8,623.35

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Solution

The fourth proportional to 11,018.11, 15,207.36 and 8,623.35 is: 11,902.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,018.11 : 15,207.36 = 8,623.35 : x
  2. Step 2: Convert to fraction form
    11,018.11/15,207.36 = 8,623.35/x
  3. Step 3: Cross multiply
    11,018.11x = 15,207.36 × 8,623.35
  4. Step 4: Simplify right side
    11,018.11x = 131,138,346.26
  5. Step 5: Solve for x
    x = 131,138,346.26/11,018.11
  6. Step 6: Final answer
    x = 11,902.07

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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.