Home / 11,528.55-17,261.34-8,709.12

Finding the Fourth Proportional to 11,528.55, 17,261.34 and 8,709.12

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Solution

The fourth proportional to 11,528.55, 17,261.34 and 8,709.12 is: 13,039.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,528.55 : 17,261.34 = 8,709.12 : x
  2. Step 2: Convert to fraction form
    11,528.55/17,261.34 = 8,709.12/x
  3. Step 3: Cross multiply
    11,528.55x = 17,261.34 × 8,709.12
  4. Step 4: Simplify right side
    11,528.55x = 150,331,081.42
  5. Step 5: Solve for x
    x = 150,331,081.42/11,528.55
  6. Step 6: Final answer
    x = 13,039.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.