Home / 13,431.88-20,151.60-4,667.68

Finding the Fourth Proportional to 13,431.88, 20,151.60 and 4,667.68

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Solution

The fourth proportional to 13,431.88, 20,151.60 and 4,667.68 is: 7,002.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.88 : 20,151.60 = 4,667.68 : x
  2. Step 2: Convert to fraction form
    13,431.88/20,151.60 = 4,667.68/x
  3. Step 3: Cross multiply
    13,431.88x = 20,151.60 × 4,667.68
  4. Step 4: Simplify right side
    13,431.88x = 94,061,220.29
  5. Step 5: Solve for x
    x = 94,061,220.29/13,431.88
  6. Step 6: Final answer
    x = 7,002.83

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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.