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Finding the Fourth Proportional to 15,063.30, 20,788.58 and 8,351.03

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Solution

The fourth proportional to 15,063.30, 20,788.58 and 8,351.03 is: 11,525.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,063.30 : 20,788.58 = 8,351.03 : x
  2. Step 2: Convert to fraction form
    15,063.30/20,788.58 = 8,351.03/x
  3. Step 3: Cross multiply
    15,063.30x = 20,788.58 × 8,351.03
  4. Step 4: Simplify right side
    15,063.30x = 173,606,128.09
  5. Step 5: Solve for x
    x = 173,606,128.09/15,063.30
  6. Step 6: Final answer
    x = 11,525.11

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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.