Home / 8,945.28-13,416.08-3,099.92

Finding the Fourth Proportional to 8,945.28, 13,416.08 and 3,099.92

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Solution

The fourth proportional to 8,945.28, 13,416.08 and 3,099.92 is: 4,649.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.28 : 13,416.08 = 3,099.92 : x
  2. Step 2: Convert to fraction form
    8,945.28/13,416.08 = 3,099.92/x
  3. Step 3: Cross multiply
    8,945.28x = 13,416.08 × 3,099.92
  4. Step 4: Simplify right side
    8,945.28x = 41,588,692.13
  5. Step 5: Solve for x
    x = 41,588,692.13/8,945.28
  6. Step 6: Final answer
    x = 4,649.23

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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.