Home / 13,570.56-20,335.68-11,122.56

Finding the Fourth Proportional to 13,570.56, 20,335.68 and 11,122.56

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Solution

The fourth proportional to 13,570.56, 20,335.68 and 11,122.56 is: 16,667.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.56 : 20,335.68 = 11,122.56 : x
  2. Step 2: Convert to fraction form
    13,570.56/20,335.68 = 11,122.56/x
  3. Step 3: Cross multiply
    13,570.56x = 20,335.68 × 11,122.56
  4. Step 4: Simplify right side
    13,570.56x = 226,184,820.94
  5. Step 5: Solve for x
    x = 226,184,820.94/13,570.56
  6. Step 6: Final answer
    x = 16,667.32

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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.