Home / 15,697.72-21,662.79-8,527.60

Finding the Fourth Proportional to 15,697.72, 21,662.79 and 8,527.60

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Solution

The fourth proportional to 15,697.72, 21,662.79 and 8,527.60 is: 11,768.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,697.72 : 21,662.79 = 8,527.60 : x
  2. Step 2: Convert to fraction form
    15,697.72/21,662.79 = 8,527.60/x
  3. Step 3: Cross multiply
    15,697.72x = 21,662.79 × 8,527.60
  4. Step 4: Simplify right side
    15,697.72x = 184,731,608.00
  5. Step 5: Solve for x
    x = 184,731,608.00/15,697.72
  6. Step 6: Final answer
    x = 11,768.05

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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.