Home / 8,586.32-12,858.36-4,189.60

Finding the Fourth Proportional to 8,586.32, 12,858.36 and 4,189.60

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Solution

The fourth proportional to 8,586.32, 12,858.36 and 4,189.60 is: 6,274.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586.32 : 12,858.36 = 4,189.60 : x
  2. Step 2: Convert to fraction form
    8,586.32/12,858.36 = 4,189.60/x
  3. Step 3: Cross multiply
    8,586.32x = 12,858.36 × 4,189.60
  4. Step 4: Simplify right side
    8,586.32x = 53,871,385.06
  5. Step 5: Solve for x
    x = 53,871,385.06/8,586.32
  6. Step 6: Final answer
    x = 6,274.09

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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.