Home / 8,102.20-12,153.30-2,259.76

Finding the Fourth Proportional to 8,102.20, 12,153.30 and 2,259.76

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Solution

The fourth proportional to 8,102.20, 12,153.30 and 2,259.76 is: 3,389.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.20 : 12,153.30 = 2,259.76 : x
  2. Step 2: Convert to fraction form
    8,102.20/12,153.30 = 2,259.76/x
  3. Step 3: Cross multiply
    8,102.20x = 12,153.30 × 2,259.76
  4. Step 4: Simplify right side
    8,102.20x = 27,463,541.21
  5. Step 5: Solve for x
    x = 27,463,541.21/8,102.20
  6. Step 6: Final answer
    x = 3,389.64

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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.