Home / 13,652.28-20,506.44-8,978.93

Finding the Fourth Proportional to 13,652.28, 20,506.44 and 8,978.93

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Solution

The fourth proportional to 13,652.28, 20,506.44 and 8,978.93 is: 13,486.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,652.28 : 20,506.44 = 8,978.93 : x
  2. Step 2: Convert to fraction form
    13,652.28/20,506.44 = 8,978.93/x
  3. Step 3: Cross multiply
    13,652.28x = 20,506.44 × 8,978.93
  4. Step 4: Simplify right side
    13,652.28x = 184,125,786.78
  5. Step 5: Solve for x
    x = 184,125,786.78/13,652.28
  6. Step 6: Final answer
    x = 13,486.82

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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.