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Finding the Fourth Proportional to 8,000.10, 11,037.60 and 4,811.40

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Solution

The fourth proportional to 8,000.10, 11,037.60 and 4,811.40 is: 6,638.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,000.10 : 11,037.60 = 4,811.40 : x
  2. Step 2: Convert to fraction form
    8,000.10/11,037.60 = 4,811.40/x
  3. Step 3: Cross multiply
    8,000.10x = 11,037.60 × 4,811.40
  4. Step 4: Simplify right side
    8,000.10x = 53,106,308.64
  5. Step 5: Solve for x
    x = 53,106,308.64/8,000.10
  6. Step 6: Final answer
    x = 6,638.21

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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.