Home / 8,811.70-12,160.79-5,822.35

Finding the Fourth Proportional to 8,811.70, 12,160.79 and 5,822.35

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Solution

The fourth proportional to 8,811.70, 12,160.79 and 5,822.35 is: 8,035.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.70 : 12,160.79 = 5,822.35 : x
  2. Step 2: Convert to fraction form
    8,811.70/12,160.79 = 5,822.35/x
  3. Step 3: Cross multiply
    8,811.70x = 12,160.79 × 5,822.35
  4. Step 4: Simplify right side
    8,811.70x = 70,804,346.54
  5. Step 5: Solve for x
    x = 70,804,346.54/8,811.70
  6. Step 6: Final answer
    x = 8,035.27

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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.