Home / 13,063.32-18,031.68-8,589.96

Finding the Fourth Proportional to 13,063.32, 18,031.68 and 8,589.96

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Solution

The fourth proportional to 13,063.32, 18,031.68 and 8,589.96 is: 11,856.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,063.32 : 18,031.68 = 8,589.96 : x
  2. Step 2: Convert to fraction form
    13,063.32/18,031.68 = 8,589.96/x
  3. Step 3: Cross multiply
    13,063.32x = 18,031.68 × 8,589.96
  4. Step 4: Simplify right side
    13,063.32x = 154,891,409.93
  5. Step 5: Solve for x
    x = 154,891,409.93/13,063.32
  6. Step 6: Final answer
    x = 11,856.97

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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.