Home / 8,811.60-12,160.57-5,822.20

Finding the Fourth Proportional to 8,811.60, 12,160.57 and 5,822.20

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Solution

The fourth proportional to 8,811.60, 12,160.57 and 5,822.20 is: 8,035.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.60 : 12,160.57 = 5,822.20 : x
  2. Step 2: Convert to fraction form
    8,811.60/12,160.57 = 5,822.20/x
  3. Step 3: Cross multiply
    8,811.60x = 12,160.57 × 5,822.20
  4. Step 4: Simplify right side
    8,811.60x = 70,801,270.65
  5. Step 5: Solve for x
    x = 70,801,270.65/8,811.60
  6. Step 6: Final answer
    x = 8,035.01

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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.