Home / 7,930.59-11,873.21-5,328.87

Finding the Fourth Proportional to 7,930.59, 11,873.21 and 5,328.87

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Solution

The fourth proportional to 7,930.59, 11,873.21 and 5,328.87 is: 7,978.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.59 : 11,873.21 = 5,328.87 : x
  2. Step 2: Convert to fraction form
    7,930.59/11,873.21 = 5,328.87/x
  3. Step 3: Cross multiply
    7,930.59x = 11,873.21 × 5,328.87
  4. Step 4: Simplify right side
    7,930.59x = 63,270,765.93
  5. Step 5: Solve for x
    x = 63,270,765.93/7,930.59
  6. Step 6: Final answer
    x = 7,978.07

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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.