Home / 13,667.45-20,504.61-4,781.75

Finding the Fourth Proportional to 13,667.45, 20,504.61 and 4,781.75

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Solution

The fourth proportional to 13,667.45, 20,504.61 and 4,781.75 is: 7,173.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667.45 : 20,504.61 = 4,781.75 : x
  2. Step 2: Convert to fraction form
    13,667.45/20,504.61 = 4,781.75/x
  3. Step 3: Cross multiply
    13,667.45x = 20,504.61 × 4,781.75
  4. Step 4: Simplify right side
    13,667.45x = 98,047,816.34
  5. Step 5: Solve for x
    x = 98,047,816.34/13,667.45
  6. Step 6: Final answer
    x = 7,173.82

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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.