Home / 11,139.20-16,713.60-5,667.20

Finding the Fourth Proportional to 11,139.20, 16,713.60 and 5,667.20

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Solution

The fourth proportional to 11,139.20, 16,713.60 and 5,667.20 is: 8,503.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.20 : 16,713.60 = 5,667.20 : x
  2. Step 2: Convert to fraction form
    11,139.20/16,713.60 = 5,667.20/x
  3. Step 3: Cross multiply
    11,139.20x = 16,713.60 × 5,667.20
  4. Step 4: Simplify right side
    11,139.20x = 94,719,313.92
  5. Step 5: Solve for x
    x = 94,719,313.92/11,139.20
  6. Step 6: Final answer
    x = 8,503.24

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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.