Home / 11,319.05-15,629.61-7,346.94

Finding the Fourth Proportional to 11,319.05, 15,629.61 and 7,346.94

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Solution

The fourth proportional to 11,319.05, 15,629.61 and 7,346.94 is: 10,144.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.05 : 15,629.61 = 7,346.94 : x
  2. Step 2: Convert to fraction form
    11,319.05/15,629.61 = 7,346.94/x
  3. Step 3: Cross multiply
    11,319.05x = 15,629.61 × 7,346.94
  4. Step 4: Simplify right side
    11,319.05x = 114,829,806.89
  5. Step 5: Solve for x
    x = 114,829,806.89/11,319.05
  6. Step 6: Final answer
    x = 10,144.83

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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.