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Finding the Fourth Proportional to 15,186.72, 20,944.05 and 9,522.08

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Solution

The fourth proportional to 15,186.72, 20,944.05 and 9,522.08 is: 13,131.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,186.72 : 20,944.05 = 9,522.08 : x
  2. Step 2: Convert to fraction form
    15,186.72/20,944.05 = 9,522.08/x
  3. Step 3: Cross multiply
    15,186.72x = 20,944.05 × 9,522.08
  4. Step 4: Simplify right side
    15,186.72x = 199,430,966.62
  5. Step 5: Solve for x
    x = 199,430,966.62/15,186.72
  6. Step 6: Final answer
    x = 13,131.93

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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.