Home / 8,258.92-11,390.94-5,740.98

Finding the Fourth Proportional to 8,258.92, 11,390.94 and 5,740.98

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Solution

The fourth proportional to 8,258.92, 11,390.94 and 5,740.98 is: 7,918.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.92 : 11,390.94 = 5,740.98 : x
  2. Step 2: Convert to fraction form
    8,258.92/11,390.94 = 5,740.98/x
  3. Step 3: Cross multiply
    8,258.92x = 11,390.94 × 5,740.98
  4. Step 4: Simplify right side
    8,258.92x = 65,395,158.72
  5. Step 5: Solve for x
    x = 65,395,158.72/8,258.92
  6. Step 6: Final answer
    x = 7,918.12

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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.