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Finding the Fourth Proportional to 14,000.58, 20,983.05 and 7,429.86

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Solution

The fourth proportional to 14,000.58, 20,983.05 and 7,429.86 is: 11,135.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.58 : 20,983.05 = 7,429.86 : x
  2. Step 2: Convert to fraction form
    14,000.58/20,983.05 = 7,429.86/x
  3. Step 3: Cross multiply
    14,000.58x = 20,983.05 × 7,429.86
  4. Step 4: Simplify right side
    14,000.58x = 155,901,123.87
  5. Step 5: Solve for x
    x = 155,901,123.87/14,000.58
  6. Step 6: Final answer
    x = 11,135.33

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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.