Home / 11,132.87-15,336.99-7,769.75

Finding the Fourth Proportional to 11,132.87, 15,336.99 and 7,769.75

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Solution

The fourth proportional to 11,132.87, 15,336.99 and 7,769.75 is: 10,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,132.87 : 15,336.99 = 7,769.75 : x
  2. Step 2: Convert to fraction form
    11,132.87/15,336.99 = 7,769.75/x
  3. Step 3: Cross multiply
    11,132.87x = 15,336.99 × 7,769.75
  4. Step 4: Simplify right side
    11,132.87x = 119,164,501.37
  5. Step 5: Solve for x
    x = 119,164,501.37/11,132.87
  6. Step 6: Final answer
    x = 10,703.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.