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Finding the Fourth Proportional to 15,577.34, 21,496.84 and 8,503.34

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Solution

The fourth proportional to 15,577.34, 21,496.84 and 8,503.34 is: 11,734.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,577.34 : 21,496.84 = 8,503.34 : x
  2. Step 2: Convert to fraction form
    15,577.34/21,496.84 = 8,503.34/x
  3. Step 3: Cross multiply
    15,577.34x = 21,496.84 × 8,503.34
  4. Step 4: Simplify right side
    15,577.34x = 182,794,939.45
  5. Step 5: Solve for x
    x = 182,794,939.45/15,577.34
  6. Step 6: Final answer
    x = 11,734.67

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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.