Home / 15,063.30-20,788.92-8,690.22

Finding the Fourth Proportional to 15,063.30, 20,788.92 and 8,690.22

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Solution

The fourth proportional to 15,063.30, 20,788.92 and 8,690.22 is: 11,993.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,063.30 : 20,788.92 = 8,690.22 : x
  2. Step 2: Convert to fraction form
    15,063.30/20,788.92 = 8,690.22/x
  3. Step 3: Cross multiply
    15,063.30x = 20,788.92 × 8,690.22
  4. Step 4: Simplify right side
    15,063.30x = 180,660,288.36
  5. Step 5: Solve for x
    x = 180,660,288.36/15,063.30
  6. Step 6: Final answer
    x = 11,993.41

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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.