Home / 8,108.64-12,164.40-2,913.84

Finding the Fourth Proportional to 8,108.64, 12,164.40 and 2,913.84

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Solution

The fourth proportional to 8,108.64, 12,164.40 and 2,913.84 is: 4,371.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.64 : 12,164.40 = 2,913.84 : x
  2. Step 2: Convert to fraction form
    8,108.64/12,164.40 = 2,913.84/x
  3. Step 3: Cross multiply
    8,108.64x = 12,164.40 × 2,913.84
  4. Step 4: Simplify right side
    8,108.64x = 35,445,115.30
  5. Step 5: Solve for x
    x = 35,445,115.30/8,108.64
  6. Step 6: Final answer
    x = 4,371.28

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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.