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Finding the Fourth Proportional to 8,666.70, 13,004.55 and 4,049.70

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Solution

The fourth proportional to 8,666.70, 13,004.55 and 4,049.70 is: 6,076.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.70 : 13,004.55 = 4,049.70 : x
  2. Step 2: Convert to fraction form
    8,666.70/13,004.55 = 4,049.70/x
  3. Step 3: Cross multiply
    8,666.70x = 13,004.55 × 4,049.70
  4. Step 4: Simplify right side
    8,666.70x = 52,664,526.14
  5. Step 5: Solve for x
    x = 52,664,526.14/8,666.70
  6. Step 6: Final answer
    x = 6,076.65

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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.