Home / 13,502.43-20,254.86-7,581.33

Finding the Fourth Proportional to 13,502.43, 20,254.86 and 7,581.33

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Solution

The fourth proportional to 13,502.43, 20,254.86 and 7,581.33 is: 11,372.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,502.43 : 20,254.86 = 7,581.33 : x
  2. Step 2: Convert to fraction form
    13,502.43/20,254.86 = 7,581.33/x
  3. Step 3: Cross multiply
    13,502.43x = 20,254.86 × 7,581.33
  4. Step 4: Simplify right side
    13,502.43x = 153,558,777.76
  5. Step 5: Solve for x
    x = 153,558,777.76/13,502.43
  6. Step 6: Final answer
    x = 11,372.68

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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.