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Finding the Fourth Proportional to 11,000.70, 16,513.20 and 6,845.40

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Solution

The fourth proportional to 11,000.70, 16,513.20 and 6,845.40 is: 10,275.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,000.70 : 16,513.20 = 6,845.40 : x
  2. Step 2: Convert to fraction form
    11,000.70/16,513.20 = 6,845.40/x
  3. Step 3: Cross multiply
    11,000.70x = 16,513.20 × 6,845.40
  4. Step 4: Simplify right side
    11,000.70x = 113,039,459.28
  5. Step 5: Solve for x
    x = 113,039,459.28/11,000.70
  6. Step 6: Final answer
    x = 10,275.66

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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.